Macassa Mines, Limited had first initiated the diamond drilling program in this area within the year 1940. Most of the work at this time had been confined to outer explorations as this company also owned the Macassa Gold Mines in Kirkland Lake. This exploration phase was being conducted on a group of claims in Rennie Township, Lochlash-Missinaibi area, within the District of Sudbury. At the time it stated that Macassa Mines. Limited had also optioned these claims. The 1940, diamond drilling program soon had outlined 3 separate economical ore bodies, which were partially explored, and contained 320,000 tonnes, averaging $5.87 per a tonne, and valuing gold at $35 of gold per a tonne. Some more additional planning had also incorporated a subsidiary company known as the Renabie Mines, Limited, to take over operations Further planning would also make this company in charge of developing the Mining Plant, and Sink the shaft to a depth of 300 feet. Nothing else had occurred within this time period of planning this mine project out.
Renabie Mine, Limited was shortly after incorporated within the year 1941, and was further stripping the land in preparation for development. Much of the whole entire mining property had consisted of 28 unpatented claims in Leeson, and Rennie Townships, Sudbury district. It was also reported that the future Renabie Gold Mine was located 13 miles north-east from Missinabi Station, and was situated on the main line of the Canadian Pacific Railway. At the time it was also stated that 23 claims became acquired from A.M. Austin and A.P. Read, and three were bought from the Mining Corporation of Canada, Limited.
Development of the property was now commencing when the company had start constructing the much need structure to run this project. This whole entire development phase would include the building of a mining company, and the main plant was installed. Some of the much need machinery that became added to the plant had included !,080 cubic foot Ingersoll Rand XVH Compressor that was driven by a 250 H.P diesel engine, 6 by 8 inch double drum hoist Ingersoll-Rand hoist, and a 60 H.P Waterous Boiler. Other buildings also became added, and included office, and store-house, hoist room and boiler house, Compressor and Diesel House, Shaft House, Headframe, Blacksmith, and Steel shope, dry house, assay office, lake pump house, three water tanks, fuel tanks, carbide house, three bunk-house, cookery, and stable.
Shaft sink was officially started on April, 1941. and had been constructed on claim S.34318. At that time it was rather stated that this three compartment vertical shaft had been sunken to a depth of 281 feet. With development continuing to take place there was also two levels that became constructed on the mines 125 and 250 foot sections. In addition to this it became reported that the 125 foot level was opened up by 2,352 feet of drifting. Another level at 250 feet was also extended by a large amount of development that totalled 1,675 feet of drifting, and 24 feet of crosscutting. By this time it was reported that the working were extensively explored by 22 diamond drill holes, totalling 1,756 feet from underground, and a total of 2,348 tonnes was mined.
It wasn't till 1942, when mining operations at the Renabie Mine had continued from January,1 to May, 14, 1942, when all operations became ceased due to wartime conditions. There was also extensive development taking place on the two producing levels at 125, and 250 feet. Much of the first level at 125 feet was now extended by 3,523 feet of drifting, and 249 feet of raising. Some development also extended the 250 foot level by 2,836 feet of drifting, 24 feet of crosscutting, and 304 feet of raising was started that year.
The Ranabie Mines, Limited was rather developing four different ore-bodies that became determined as the A, B, C, and D Zones. This whole entire area was reported to have been located on the 250 foot level, and became rapidly extended, and diamond drilled to determine the reserve estimation. Diamond drilling on this section had driven eighty holes, totalling a length of 7,946 feet from underground. As explorations continued to take place it was also stated that some raising became apart of this procedure. Most of this whole entire exploration was rather aimed at the downwards continuity of these zones below 250 foot level. It soon became determined that the company had discovered a small size ore-body known as 1-58 on the 125 foot level. At the time it was also stated that suffeint amount of exploration work had been done on the A zone to determine its estimation.
Estimation of Ore-bodies
C Ore Body - 109,400 tonnes, grading 0.10 ounces per a tonne, and valuing at $7.31
1-58 Ore Body- 2,000 tonnes, grading 0.40, and valuing $15.40 per a tonne.
B Ore Body- 31,000 tonnes, grading 0.165 ounces per a tonne, and valuing $3.64.
D Ore Body- 173,325 tonnes, grading 0.37 ounces per a tonne, and valuing $14.24
Total estimation was 314,725 tonnes, averaging 0.287 ounces per a tonne, and valuing $11.04
"Experimental tests to determine the probable extraction and mill flow-sheet adaptable to the ore are under-way. Enough tests have been made to establish that an extraction of between 90 and 95 per cent, is assured and that there is a possibility that an extraction of over 95 per cent, may be attained eventually. In view of the fact that 314,725 tons, with a gross value of 83,474,564.00 at the present price of gold, have been developed and diamond-drilling has proved commercial values to exist below the developed area, I suggest that consideration be given to the construction of a plant and mill having an average daily capacity of 300 tons. Such a programme would probably have to await an opportune time following the war".
Mining operations at the Renabie Gold Mine became resumed within 1946, and had still been under the ownership of the Renabie Mines, Limited. It was during this year when the company decided not to dewater the No.. 1 shaft as another shaft known as the No. 2 was being developed. Almost all development on the 3 compartment Vertical shaft was under going an extensive sinking phase when it had reach it's own depth of 377 feet by the end of that year. This shaft was also located at a distance of 1.300 feet to the west of the No. 1 shaft, on claim S.34317. With the shaft expanding at depth it was rather reported that preporations were being made to construct levels. These levels alone soon had been opened up on the mines 120, 250, and 375 foot sections. A considerable amount of surface trenching was also done, and had a total length of 600 feet.
Besides developing the underground workings the company had also started to built it's very own shaft-head, and a 300 tonne flotation cyanide mill. There was also power line which was being completed by the Great Lakes Power Company at the time. Nothing else had occurred within this operation as the mine was being place back into operating order.
It wasn't till 1947, when the Renabie Mines, Limited would continue their expansion the three compartment, vertical, No. 2 shaft. Company officials within this time period would continue to sink the No. 2 shaft further, and was now reaching a new depth of 416 feet from the surface, Besides placing development on this shaft it was also stated that the company had dewatered the No. 1 shaft to a depth of 281 feet, and had connected the two shafts on the 250 foot level. This whole entire development had consisted of extending the level further by 269 feet of drifting, 550 feet of crosscutting, and 631 feet of raising.
Some structural development continued to take place within the first half of year, and had been focus on getting the milling plant, and hoisting facilities installed. Much of this development construction was aimed at obtaining income from the milling ore, and to complete other construction projects. All milling operations at the newly developed 300 tonne flotation Cyanide Mill had commence in July, and operated throughout the year. Some other problems escalated when the Renabie Mines, Limited could not work on a 300 tonne per a day basis. Generally this became caused by the company did not have enough employees, and the quality of miners was also not that great. But this did not stop production as the mill was able to treat a total of 24,743 tonnes of ore that produce a bullion profit of $166,797.75 that was shipped. Almost all production that year had came from the preparation of stope sections, and from dump material. It was at this time when the daily assaying average for the mill had indicated 0.293 ounces of gold per a tonne of ore. Further estimations had reveal that the average mill tail for the preliminary run was 0.03 ounces of gold, and approximately $70,000 of recoverable gold that was tied up in the mills circuit.
Almost all the ore that was obtained in 1947, had came from the D ore-body that was only indicated on the 125, and 250 foot levels. At the time it was strongly reported that the company did not permit any new development on the 375 foot level. Further estimations of the reserves had slightly became decreased within the D zone ore-body. The ore within the surface dumps was also completely milled that year with some of the ore in the D zone locations In addition to this the Renabie Mines, Limited had indicated a total reserve of 200,000 tonnes of unbroken, and 12,000 tonnes of broken ore. In total calculation this gave the company a total ore reserve of 212,000 tonnes of ore that graded 0.258 ounces of gold in unbroken ore, and 0.350 ounces of gold per a tonne from the broken ore. It was also said that the A ore-body reserve could not be estimated as development, and exploration work was not being conducted on this zone.
Development work within 1947 was mainly reported to have been aimed at expanding a crosscut within the 250 foot level by 565 feet. This was caused because the company wanted to connect the No. 1 and No. 2 shafts together to reduce mining costs. There was also another additional 116 feet of crosscutting done in order to improve motor haulage on this level. With development expanding the workings it was also stated that a loading pocket was installed on the 250 foot level, and an ore pass was then driven to the 250 foot level. Company officials from the Renabie Mines, Limited had other plans when two transfer raises became driven from the 250 foot level to the 125 foot level to handle stopes above the 125 foot level. Some more expanding would continue to take place on the D zone when two shrinkage stopes were developed for mining, and work was started on developing the C zone shrinkage stopes. Other plans also had taken place when the company was making preporations to develop the D zone on the 375 foot horizon. It was also being done because the company had wanted to also prepare the A and B Zones for stoping, and to deepen the No. 2 main shaft to at least two more levels. No diamond drilling was done within that year as development was being achieved to prepare new stope sections.
"Construction of the mining and milling plant was completed to the point where milling opera tions commenced in July. Following this, construction of the remaining necessary parts of the plant for continuous operation was proceeded with and completed by snow-fall. This included two 60-man dormitories, Diesel standby unit, second air compressor, change-house, heating plant with the necessary steam-piping, and plumbing to and in camps and plant buildings, six staff cabins, water supply tank, pumping-station, and a 5-inch water line from Campbell lake, 134 miles distant, oil-house, and other smaller plant adjuncts. A considerable number of items of operating-equipment for underground, such as rock-drills, two mucking-machines, two locomotives, and three slushers, had to be purchased. The construction programme was carried out at a time of rising prices, when promises for delivery of materials were not kept, certain vital items were not available or very slow of delivery and with an unstable and thus expensive labour supply, all of which was not anticipated". No other development was achieved by the company during this time period of operating the mine site at full force.
Further mine development had continued the expand the No. 2 Vertical three compartment shaft in 1948. It was at this time when the shaft was undergoing a sinking phase, and had reach a depth of 838 feet below the shaft collar. In addition to this it was also reported that new levels soon became constructed on the mines 520, 675, and 800 foot sections. There was also significant amount of development that had occurred within this year as 893 feet of drifting, 453 feet of crosscutting, and 1,051 feet of raising was completed that year. In total lateral development it was strongly reported that the mine now consisted of 7,523 feet of drifting, 1,028 feet of crosscutting, and 2,300 feet of raising. Some more diamond drilling also had taken place when two holes, totaling 230 feet became driven from the surface, and another nineteen holes, totalling 2,799 feet became driven from underground.
Even milling operations continued to operate throughout the year, when the daily capacity was now increased from 169 to 400 tonnes of ore.by December. The mill within 1948, had treated a huge amount of ore that totalled 100,072 tonnes of gold ore. It was reported that the company had received a total gross recovery of $843,083.37 at a recovery grade of $8.43 per a tonne. Some more information had revealed that the company produced 26,564.38 ounces of gold from head value that graded 0.2656. Another 2,879.52 ounces was taken from the tails value that graded 0.0288 ounces of gold per a tonne, and 23,917.49 ounces of gold was also taken from the recovered valued that graded 0.2390 of gold ounces per a tonne
Ore reserves within the Renabie Mine project had once again increased then the previous year estimation count. It was stated that broken ore reserves had dramatically increased by 54,000 within that year. This had also given the company a total of 249,000 unbroken ore reserves grading 0.255 ounces per a tonne, and another 66,000 broken reserves grading at 0.231. More so this whole entire investigation had increased the reserves by 315,000. with an average grade of 0.250 ounces per a tonne, and had valued at $8.75. Some more indications had also determined that slow delivery of heavy electrical equitment, such as compressor motor, and ball mill motor had delayed milling, and mining expansions. There was also no difficulty experience while mining this ore-body, and no serious accidents had occurred within 1948. Nothing else had taken place that year as the mine was very productive but not operated at a full force. An average workforce of 171 miners was employed under the direction of A.A. McCloskey who was the mine manager.
It was by 1949, when the Vertical, 3 compartment shaft was sunken to a depth of 960 feet below the surface, and another level was now establish at 925 feet. Almost all development work within that year had consisted of 1,254 feet of drifting, 1,186 feet of crosscutting, and 378 feet of raising. Some more diamond drilling had also taken place when 95 holes, totalling 11,219 feet became driven from underground. Milling operations at the Renabie Mine Project had operated at an average daily rate of 425 tonnes, and had treated a total 155,049 tonnes of ore. From all production the company had made a total gross recovery of 1,193,807.84, but would only receive $149,409.18 for that year under the Emergency Gold Mining Assistance Act. Company officials had also produced a total of 280,864 tonnes of ore from start up and had treated 61,373.605 ounces of gold, and 20,844 ounces of silver. Most of this had came from the major development of the ore-bodies on the 250, 375, 525, and 675 foot levels with drifting, and crosscutting.
Ore reserves within the Renabie Mine Project had once again increased. and the company had reported the following within 1949. It was stated that the mine had total of 384,000 tonnes of unbroken reserves grading 0.254 ounces of gold per a tonne. Some more estimation had accounted to 56,000 tonnes of broken ore, grading 0.226 ounces of per a tonne, which had total reserve estimation of 440,000 tonnes, averaging a daily grade of 0.250. The small settlement town of Renabie Mines, was officially constructed when the Postal Authorities had establish a post office in 1949. Macassa Mine, Limited had also remained as the Consulting engineering of this mine project.
Almost all mining operations within 1950, had been escalated on extending the drifts, and crosscuts on the ore-bodies that area situated on the 250, 375, 675, and 800 foot level. Some more preparations were also being aimed at connect the deep levels with the No.2 shaft at 175 foot intervals. This will also allow further sinking of the No. 2 shaft to a depth of 1,650 feet in 1951. Further expanding on the 800 foot level had also indicated 20% more ore in the D Zone then the previous best level at 675 feet. Estimations on this level had also determined that 1,380 tonnes per a vertical foot had contained 0.30 ounces of gold Another ore-body known as the E zone had reported to have only been partially developed between the levels at 250, and 800 feet. Some of the best valued ore was found below the 675 foot level, where the grade is considered to be 0.50 ounces of gold per a tonne across 4 feet, and had a length of 100 feet. It also became determined that the C ore-body had reached the 625 foot level, but work was discontinued when a heavy flow of water
Diamond drilling within 1950 had been mainly confined to the 675 foot level crosscut that was aimed at determining the extension of the C zone, and the D and E zones below the 800 foot level. Company officials from the Renabie Mines, Limited had also encountered another ore-body 400 feet west of the No. 2 shaft, that intersected a zone that was 50 feet wide, and graded o.10 ounces of gold per a tonne.
Some more increases to the ore-reserves had also been made within 1955, and was once again higher then the previous year. Further estimations by the company had indicated 392,000 tonnes of ore, grading 0.25 ounces of gold per a tonne of Unbroken ore. There was also another 91,000 tonnes of Broken ore that graded 0.270 ounces of gold per a tonne. In total estimation the company had reported a reserve of 483,000 tonnes with an average grade of 0.254 ounces of gold per a tonne.
Even milling within 1950, was running continuously, when the company had treated a total of 157,048 tonnes of ore from the mine site. The whole entire treatment had soon produce a gross recovery of $1,411,237.87, which the company would only be entitled to 103,118.56 in regards to the Emergency Gold Mining Assistance Act. From 1947 till 1950, the mill was commonly considered to have treated a total of 438,812 tonnes, which produced 98,304.308 ounces of gold, and 32,888.62 ounces of silver. In total gross value it was reported that this major production had contained $3614.926.83 in gold, and silver production. It also became state that the company was able to produce 36,930 ounces of gold, and 12,044 ounces of silver in 1950. The townsite of Renabie, was also being rapidly grown when it now included 67 families,75 houses, and a total population of 330 people. A total of 171 miners had also been employed at this mine site during the year of operations at the Renabie Gold Mine. Nothing else had occurred within the year as the mine was being extensively developed to reach the indicated ore-bodies.
A major set back had occurred at the Renabie Mine in 1951, when a fire had destroyed crusher house, shaft house, and conveyor galleries on January, 25, 1951. It wasn't till July, 15 of that year when milling operations became resumed after all the indicated structures became built again. The milling facility was strongly considered to have still treated a total of 88,376 tonnes of ore that year, and had produce a gross recovery of $873,084.19 in gold. Some more changes to the mill had also taken place when the company had installed a 375 capacity ore bin that would able to store 1,000 tonnes of ore within the milling facility. Other upgrades would take place when altercations were being made in the mill flow sheet in order to improve operating efficiency, and over-all extractions. From all production that year the mill was able to produce 23.672.988 ounces of gold, and 7,548.44 ounces of silver from a daily production rate of 450 tonnes of ore.
Besides milling operations, and the devastating fire, the Renabie MInes, Limited had also commence the sinking phase of the vertical 3 compartment shaft. Much of this expanding phase had driven the shaft further within the ground as it was now reaching a total depth of 1.430 feet. With the shaft becoming further expanded it was also being opened up by new levels that became cut, and stationed on the mines 1,100. 1,250, 1.400 foot levels. Almost all development within that year was rather commence on developing the D Ore-Body on the 975 foot level. Further indications of this ore-body had revealed that it would take up to several months of work to outline the ore-body on the 975 foot level. The C zone on the 675 foot level was rather reported to have not been developed within this year. Another ore-body known as the E zone was officially extend by drifting, and crosscutting between the 250, and 800 foot levels.
Ore reserves within the Renabie Mine Project had been known to have the same estimation of ore reserve as the in 1950. It was estimated that the Renabie Mine Project still had held 387,000 tonnes of ore, grading at 0.26 ounces per a tonne of ore mined. The Broken ore reserves became indicated at 87,000 tonnes, grading 0.26 ounces of gold per a tonne of ore. In addition to this estimation it was reported that the company still had an ore-reserve of 473,000 tonnes of ore, grading an average of 0.26 ounce of gold, and valued at $35 a tonne.
The Renabie Gold Mine had continued to operate throughout 1955, and was rather being further developed within this time period. It was also reported that development, and production was reduce during the first 10 months due to reduction of hydro-electrical power, and forest fires in the vicinity. Almost all development within that time period was aimed at developing the ore-bodies between the 525 and 1,250 foot levels. Some more constructing had also taken place on the newly discovered M ore-body between the 525 and 850 foot levels. Further diamond drilling would also uncover the downward continuation of the D ore-body, which was traced to the 1,500 foot horizon. Company officials from the Renabie Mines, Limited would also plan to sink the shaft from the 1,430 foot level to a depth of 2,200 feet by 1956. All diamond drilling within 1955, was considered to have consisted of 80 holes, totalling 15,557 feet from underground.
Development completed in1955 - No, 2 shaft
Level Drifting cross cutting raising
125 feet 3,965 feet 104 feet 1,025 feet
350 feet 3,508 feet 759 feet 1,075 feet
375 feet 1,723 feet 698 feet 957 feet
525 feet 1,615 feet 595 feet 1,145 feet
675 feet 2,057 feet 2,203 feet 1,670 feet
800 feet 1,755 feet 1,425 feet 1,155 feet
925 feet 2,471 feet 154 feet 891 feet
1,100 feet 802 feet 561 feet 1,311 feet
1,250 feet 1,037 feet 327 feet 435 feet
1,400 feet -------------- 13 feet 87 feet
Milling operations at the Renabie Mine mill had continued to operate in 1955, and had a daily prooduction rate of 453.9 tonnes of ore per a day. All production in 1955, had treated a total of 165, 656 tonnes of ore that produce a recovery gross of $1,325,575.67 in gold and silver that year, The mill had soon produce 38,045.907 ouncs of gold, and11,839 ounces of silver bullion from all this processing. From 1947 to 1965, the mill was strongly considered to have treated a total of 1,198,103 tonnes that produce 284,8181.057 ounces of gold, and 90,756 ounces of silver.
Some more upgrades had also been added towards the mil, which included agitator, and filters that became installed within the new addition to the milling facility. This whole entire equitment installation had soon increase the mills daily production rate by 625 tonnes of ore per a day.
Ore reserves within the Renabie Mine had continued to increase during 1955, and had now totalled 398,600 tonnes of unbroken ore reserves, grading 0.252 ounces of gold per a tonne. Another estimation of 106,400 tonnes of broken ore reserve of 0.248 ounces of gold per a tonne. Nothing else was known to have occurred within that year as the mine was kept active, and had also opened up new ore-bodies that year,
It was by 1956, when the No. 2 vertical three compartment shaft was expanding to greater depths, and had reach the 1,711 foot level as it was being driven to a depth of 2,200 feet from the 1,430 foot level. At this time it was also reported that development within 1956 was being focus on the ore-bodies between the 625, and 1,250 foot levels. There was also some bulk work which became concentrated on the 1,100 and 1,250 foot levels of the No. 2 shaft that year. It was also during this time period when four levels continued to expand the mine workings significantly., and had hoisted a total of 152,447 tonnes of ore from the mine.
Level drifting crosscutting raising
675 feet 2,254 feet 2,203 feet 1,890 feet
925 feet 2,536 feet 1,54 feet 960 feet
1,100 feet 1,123 feet 561 feet 1,491 feet
1,250 feet 2,195 feet 327 feet 763 feet
The mill within 1956, had continously operated at at a rate of 418.91 tonnes of ore on a daily basis, and had treated a total of 153,322 tonnes of ore. Production from the concentrate produce had it own gross recovery of $1,152,007.00 in gold, and silver that year. From all production it was rather stated that the mill had produce a bullion recovery of 33,287.99 ounces of gold, and 9,624.23 ounces of silver. In addition to this it was also caculated that the mine had treated 1,351,425 tonnes of ore, which produce 318,105.956 ounces of gold, and 100,376.79 ounces of silver from 1947 to 1956. More so this whole entire mine life production had recovered a gross value of $11,267,937.34 in gold, and silver within it's years of operating. Some more changes to the milling facility had also taken place whem the companyy wanted to provide agitation before thickening, and agitation before filtering, which was officially being upgraded. Another major power supply also became increased when the company had added a 10 K.W, 550 K.V.A diesel generator to up the power reduction issues.
It was rather reported that the ore-reserves within the Renabie Gold Project had slightly decreased by this time. In total reserves it was stated that the mine had 358,403 tonnes of unbroken ore reserves grading o.222 ounces in gold per a tonne. Some more estimations had also been made on the broken ore reserves that had totalled 117,245 tonnes at a grade of 0.265 ounces of gold per a tonne. This whole entire ore-reserves caculation had soon indicated that the mine still had 475,648 tonnes of ore, which had its own average grade of 0.232 ounces of gold per a tonne. Nothing else had taken place that year as the mine was continuing to be developed, and explored further within the underground workings.
All development within 1957, had continued to expand the No. 2 shaft operation when it had reach a depth of 2,229 feet by August of that year. This whole entire development procedure had also started constructing an ore pass that was being driven from the 2,100 foot loading pocket to the 1,400 foot level. By this time the 2,100 foot level was being opened up with another level at 2,175 feet. There was also a huge amount of crosscutting that became advanced on the 1,400, 1,550, 1,700, and 2,000 foot levels. Much of this whole entire development procedure had allowed the ore, and waste pass to be driven towards the 1,400 foot level of the Renabie Mine. Almost all the work on the ore, and waste pass system had also been 80% completed by the end of that year.
Further predictions in 1957, had stated that preporations were being made to obtain some ore from the 1,400 foot level by May, 1958, and that 10% of the mill feet will be coming from that level by August, 1957. Some more diamond drilling procedures also indicated another ore-body that was discovered 300 feet southwest of the J Ore-body on the 1,250 foot level. In addition to this it was also reported that the 1,400 foot J Crosscut was being extended to the south in order to cover this new ore-body. Other diamond drilling intersections had stated that the J ore-body is known to have a downward continuation, and is traced on 1,550 foot level. Almost all the work within that year had been further exploring, and developing 11 producing levels in the Renabie Mine Project. Diamond drilling had continued to take place when 72 hole became driven, and totalled 10,575 feet from underground that year. Company officials had also hoisted a large amount of ore from the mine that totalled 167,458 tonnes in 1957.
Other development was also being confined to developing the ore-bodies between the 675 and 1,259 foot levels. Some more indications had revealed that the ore which was pulled from the ground had not been up to the previous years of grading due to greater dilutions. It also had graded differently then the previous estimations that were conducted by diamond drilling. This whole entire new grading had also lowered mill head, and would reduce operating profits.
Development done on levels of the No. 2 shaft
Level Drifting Crosscutting raising
375 feet 1,723 feet 710 feet 957 feet
675 feet 2.347 feet 2,203 feet 1,820 feet
800 feet 2,039 feet 1,425 feet 1,155 feet
925 feet 3,517 feet 154 feet 1,038 feet
1,400 feet ----------- 201 feet 87 feet
1,550 ------------- 16 feet ------------
1,700 feet ------------- 103 feet ========
1,850 feet ------------ 189 feet -------------
2,000 feet ------------ 210 feet 56 feet
2,100 feet ------------ --------------- 230 feet
2,175 feet ------------ --------------- 65 feet
The mill at the Renabie Gold Project had continued to operate during this time period, and had a daily production rate of 457.90 tonnes of ore. Total production from the milling facility was commonly considered to have treated a total of 167,133 tonnes of ore that year. In which this would give the company a gross recovery grade of $1,056,830.07 in gold, and silver. During 1957, the milling facility had produce a bullion recovery of 31,276.297 ounces of gold, and 8,493 ounces of silver. The total production from 1947 to 1957, had treated 1,518,558 tonnes of ore that had now produce 349,382.253 ounces of gold, and 108,870.46 ounces of silver. More so this gave the company a gross recovery value of $12,324,767.41 in gold, and silver production.
Some more changes to the mill had taken place on April, 1957, when the company installed a new 6 by 8 foot rod mill, a 9 by 11 foot pebble mill, coverting the 8 by 10 foot ball mill into a 10 by 10 foot pebble mill. The reasoning for installing this pebble mill was because the company wanted to insistute pebble grinding in place of grinding with steel balls. Most of these changes would also save the company money by $0.30 per a tonne, and would also increase the tonnage from 450 to 550 tonnes per a day. It also became stated that the rod mill was officially in production by November, 23, and that work had commenced on installing the new pebble mill. Once this becomes completed it will raise the ore tonnage to 550 tonnes on a daily basis.
The ore reserves within the Renabie Mine had also slightly continued to decrease due to the delution problems the company face that year. Company officials from the Renabie Mines, Limited had cacullated a total of 320,818 tonnes of unbroken ore reserves that graded 0.223 ounces of gold per a tonne. Further estimations would also indicate a total of 81,679 tonnes, grading 0.168 ounces of gold per a tonne. Ore reserves within the Renabie Mine soon had totalled 402,497 tonnes with an average grade of 0.212 ounces of gold per a tonne.
Mining operations at the Renabie Mine had continued to take place throughout the year of 1958, and had extensively developed this project. By this time it was reported that the company had completed the ore pass system from the 2,200 foot level to the 1,400 foot level by May, and had also completed the waste pass system by August, 1958. Some more explorations on this project had indicated 87,500 tonnes of 0.225 ounces of gold per a tonne. These predictions had been discovered within the No. 14 J ore-body between the 1,400, and 1,250 foot levels. At the time this company was making preporations to mine the J Ore-body within this section and had planned to mine this stope by January, 1959.
Other explorations also had continued on the 1,400 foot level that trace the N Ore-Body from the 1,250 foot level. More so it was reported that the N Ore-Body had been discovered 300 feet south-west of the J ore-body. At the time it was also stated that the ore-body was not fully diamond drilled but the company had estimates it to contain 100,000 tonnes, grading 0.185 ounces of gold per a tonne.
Other development work was all being planned for 1959, and had including mining the No. 14 J, No.14 N Stope, the testing of the 14K zone, and some lateral work to the south of the 1,550 foot level in order to reach the J and N ore-bodies . Company officials from the Renabie MInes, LImited had also taken every effort to increase reserves, and open up new ore production stopes.
More development was also confined to developing the ore-bodies between the 675, and 1,250 foot levels. Company officials had also ran into some dilution problems within this time period as the ore pulled had graded less then the indicated diamond drill samples. With different caculations occurring the company had slowly started to figure out these dilutions problems with the indicated assays from the extracted ore.
The Renabie Mine Mill would operate throughout the year, and was producing ore on a dailly production rate of 486,2 tonnes of ore that year. In total prudction the mill was able to make a bullion recovery of 27,857.4 ounces of gold, and 8,426.59 ounces of silver. This whole entire recovery had came from treating 177,475 tonnes of ore, that had a gross recovery value of $952,880.21. Some more expansion would also take place when the shell was installed in the 10 by 10 pebble mill, and had completed the changes to the grinding circuit that started running by April, 1957. Further statemens had indicated that the grind circuit was capable of handling 550 tonnes of ore per a day, but it wasn't till July when full production was increased.
It was reported that the ore-reserves had rather rather been at the same caculation as the previous year of operating the Renabie Gold Mine Project. Most of this was caused because of dilutions, and the elimination of ore that was being developed to reach other ore-bodies. In total caculation the company had indicated 330,556 tonnes of unbroken ore reserves that graded 0.211 ounces of gold per a tonne. Other estimations had revealed 25,980 tonnes of broken ore reserves which graded at 0.235 ounces gold per a tonne. In total reserve estimation it was stated that the mine still had contained 356,536 tonnes with an average grade of 0.213 ounces of gold. Nothing else had taken place within 1958 as dilution problems were being resolved within the grading of the gold.