After doing further explorations the company was able to identify the occurrence as it lies within the mafic metavolcanic rocks of the Kamiskotia Volcanic Complex. This geological complex is known to overlie, and becomes intruded by the Kamiskatia Gabbroic Complex. Almost all of this ore-body is known to consist of massive pyrite in silicified, and carbonated basic schist. The Chalcopyrite Deposit is known to be disseminated between the grains, and nodules of pyrite that often comes in bands, or within quartz stringers. In many cases the contact of the ore-bodies are generally fault planes that dip to the north at steep angles, and are associated with massive sulphides. One of the largest ore-bodies within this contact zone is known to be Y shaped, that's 350 feet long, and 250 feet wide. After further exploring this area it was determined that the smallest ore-body was nearly a rectangular shape that had it's own length of 150 feet long, and 75 feet wide. In addition to this, the zine concentrates were said to be nearly tabular in shape, and had thicken within depth of the deposit zone. The Copper Ore-body is known to be very extensive in this mining operation as it extends in a more northerly direction.
All development on the Kam Kotia Copper-Zinc Mine was first started in 1926, when a shaft was being sunken somewhere in the beginning of November. It was additionally sunken to a depth of 70 feet as it was being further examined by the Hollinger Consolidated Gold Mines, Limited. Further drilling on this deposit would continued to take place as the company wanted to determine the lateral extent of the ore-body. No other development or production had escalated besides the construction of a small scale power plant.
Some more expanding of the Jamieson Property would continue to take place in 1926, as the two compartment shaft was sunken to a depth of 110 feet. During this sinking phase, the Hollinger Consolidated Gold Mines wouldn't develop any levels just yet as the ore-body was being examined more extensively. This would include taking some underground samples, and conducting further diamond drilling on this deposit to know if it was continuous or not. Company officials from the Hollinger Consolidated Gold Mines, Limited had soon uncovered more ore that was satisfactory for development.
Even more development on the two compartment shaft continued in 1927, when it was now reaching a depth of 162 feet. It was reported the this shaft at the time was constructed on claim No. 12339 as it was developed on 8 claims, totalling 400 acres, in Robb, Township, in the district of Cochrane. By this time the company place major development when the 150 foot level was opened up by 600 feet of drifting, and 250 feet of crosscutting. No other development continued to take place as the Hollinger Consolidated Mines had suspended mining operations for the time being.
From 1927 to 1942, the mine had still been registered to the Hollinger Consolidated Gold Mines, Limited as it was suspended for the time being. As 1942 had arrived upon the company it was soon determined that the Hollinger Consolidated Gold Mines, Limited would open the Jamieson Property. But it would also form it's own subsidiary company to operate this mine as the Kam Kotia Porcupine Mines, Limited was incorporated. Before any mining was to continue the company had came to an agreement between the Department of Munitions, and Supply from Ottawa, and the Metals Reserve Company of Washington. Most of the ore that came from this mining was rather reported to have supply the copper deficiency in the United-States. Almost all the work during this time period was being done by the Hollinger Consolidated Gold Mines, Limited, as it was operated under the supervisor of Wartime Metal Corporation. The companies main focus at that time was to construct a 22 mile roadway from the mine site into Timmins, Ontario, Canada. Most of this project was done because the company wanted to provide an easier access route into the claimed area for transportation issues.
With the roadway completed in 1943, the company was able to provide an access point into this mining operation. Much of this was done to allow a 44,000 volt power line into the mine site that was 6 miles long, and soon connected with the Sturgeon Falls Transmission Line, which was owned by the Canada Northern Power Corporation. With this development completed the company now focus on a pumping station that was developed on Kamiskotia Lake, that included a 7,000 foot pipeline. Even more constructing would occur when the Kam Kotia Porcupine Mines, Limited had now commence the development of their very own Crushing Plant, and a 400 tonne Copper Concentrator. Some more buildings that we're built in 1943, had included an office, steel shop, a three truck garage, a dry house, bunkhouse, cookery, and staff house.
As development on the crusher, and concentrator became completed, the company would install the following components to run this milling, and crushing facility. This included a 48 by 60-inch Buchanan Jaw Crusher, a 4 1/2 foot Symons Cone Crusher, a 7 by 14-foot Marcy Ball Mill, a 6 by 20-foot Tube Mill, 28 No. 6 Denver Flotation Cells, a 40 foot tray thickener, and a 1,200 cubic foot Canadian Ingersoll Rand Compressor.
With serious development escalating the company would also place new phases towards this mining operation. Much of this included constructing a new open-pit operation that took place from August,30, and continue till December,31, 1943. Almost all the ore that was broken down had been removed by Bucyrus Electric Shovels with a 2 yard dipper, and place into trucks that hauled the material to the copper concentrator. With significant development taking place the Open Pit was now 175 feet long, 125 feet wide, and 40 feet deep by the end of 1943. Milling operations at the mine soon had treated a total of 37,048 tonnes of material from the open pit operation. All milling procedures we're commonly operated from September, 2 to the end of the year Once the ore became treated it was taken to Timmins, Ontario, Canada where it was shipped to Noranda for further treatment. Nothing else had taken place in 1943 as the mine was becoming more developed by open pit mining. By 1944 the mining operation was officially suspended as more explorations had taken place that included diamond drilling, and Gravity Geophysical Surveying from 1951 to 1960.
Within 1960, the Kam Kotia Porcupine Mines, Limited would decide to once again operate the Kam Kotia Mine. The whole entire pit was soon dewatered as the company would once again provide the necessary explorations towards the open-pit operation. In addition to this, four holes soon became drilled that totalled 2,709 feet from the surface. As the mine started to get back into production the company would also purchase the milling facility from the Nickel Rim Mines, Limited, and the major part of the plant from Clinch Mines, Limited. This whole entire milling facility, and plant was shipped from the North-west territories to the Kam-Kotia Mine Site. Much of the need equipment was purchased for the milling, and mining plant in order to produce Copper-Zinc Ore bearing material that was scheduled for production in 1961. This whole entire mine opening also prompted the company to add more structures that included office, and warehouse, shop, garage, dry house, mill buildings, Crusher Buildings, switch room, and water tank. .
In 1961, the Hollinger Consolidated Gold Mines, Limited had prepare to re-open the Kam-Kotia Mine as an open pit operation. It would continue to develop, and extract the rich copper ore-body that was discovered in the open pit project. This would also lead to further explorations when the company commence more drilling on the property that totalled 2,709 feet from 27 surface diamond drill holes. As the mine started to get back into production the company would also purchase the milling facility from the Nickel Rim Mines, Limited, and the major part of the plant from Clinch Mines, Limited. This whole entire milling facility, and plant was shipped from the North-west territories to the Kam-Kotia Mine Site.
With huge expansions taking place the Hollinger Consolidated Gold Mines, Limited also constructed new structures. Most of this had included a pump-house, a cold storage building, and the addition to the crusher house. As these structures became developed the Kam Kotia Porcupine Mines, Limited would officially commence mining operations on the open pit. It was reported that the company had removed 605,201 tonnes of ore from the pit, while mining 252,250 tonnes. Even the newly purchased mill was operating at this time when it soon had treated 235,136 tonnes of ore from April,9, to December, 31, 1961 .
Even more changes to the mining operation would continued in 1962, when the Kam Kotia Porcupine Mines, Limited had continued open pit operations. They would also start on a whole new development when a shaft was collared on claim P.12341, and was soon sunken to 42 feet in 1962. By this time the company would also place a major diamond drilling campaign of 82 surface holes, that totalled 40,169 feet. With new development procedures escalating on the mining operation, the company had no choice but to construct more buildings. These newly engineered structures had included a Garage, Power house, Concentrator Loading area, an extention to the office, a fire pump-house, and conveyor gallery.
Even hoisting within 1962 was very extensive when the company had hoisted a total of 855,030 tonnes of ore from the open pit. It was reported the company would discard at total of 358,595 tonnes as waste from this haulage. A total of 76,001 tonnes of low grade copper ore was stockpile, while another 30,030 tonnes was stock piled as medium grade ore. The company even had it's own stockpile for zinc ore as it produce 1,210 tonnes from the open pit that year. Even milling within that time period was processing a total of 376,533 tonnes that mainly came from the open-pit operation. This mill was also upgrade when it was producing a daily production rate of 1,031.1 tonnes of ore. As the ore entered the milling facility it had assayed at 0.85 a tonne in zinc, and 1.89 a tonne in copper. Further into production the company soon produce 30,516.79 tonnes of copper concentrate from this mine production.
It was also reported that the company would calculate its reserves when five different zones we're discovered in this production, The first of this calculation was started on open-pit ore, and the high-grade stockpiles that totalled 592,959 tonnes of ore that average 1.75% copper. Another section known as the B Zone had all estimated to contain 1,170,528 tonnes of ore reserves that average 2.17% of copper.. Even the ore reserves below the open pit, and east of the pit became calculated as they totalled 114,456 tonnes that average 1.65% copper. Some more estimations became made on the C zone that had a total reserve of 156,586 tonnes of ore that average 1.19% copper The North Zone that was located in the hanging wall of the open pit had a reserve of 90,193 tonnes that average 1;15% copper. It was also estimated that the low grade ore had it's own reserve 313,200 tonnes that average 0.80% copper. In total reserves the open pit operation had totalled significant amount of copper-zinc ore that still had 2,428,710 tonnes of ore to be mined. Much of this reserve count was taken from extensive diamond drilling that encountered new ore reserves with additional estimations.
Besides copper ore the company would also estimate its zinc concentrate when the zinc stock pile contained a reserve of 12,070 tonnes of ore that average 3.14% zinc. It was also estimated that the open pit ore that was mine with the copper had a reserve of 71,733 tonnes that graded 3.62% zinc. There was also another section of zinc that was not mined with the copper as it had a reserve of 53,522 tonnes that graded 3.15% zinc. Another assaying was made outside, and below the open-pit operation that had a reserve of 387,275 tonnes of ore that graded 4.28% zinc. The last estimation was made on the B Zone that was mixed in with copper, and zinc, but had it's own reserve of 286,199 tonnes that graded 2.88% zinc. In total estimations the Kam-Kotia Mine had it's own zinc reserve of 810,799 tonnes of ore, and averages 3.55% in zinc.
As development continued the company would once again place mandatory expansions to the four compartment shaft that was now reaching a depth of 864 feet. It would even cut, and station many level that became determined as 9,900, 9,750, 9,600, 9,400, and 9,250 foot levels that we're establish at 150, 300, 450, 800 feet. Even a small amount of surface diamond drilling was completed that year, which totalled 11,567 feet from 34 holes. During this time period the company had mainly prepared these levels as they weren't quite establish yet. Further into developing this project the company also place construction phase on more building that included an oil house, power house extension, surface dry, and carpenter shop, a mill building, hoist house, and headframe, shaft houses, and bin house.
All milling operations within 1963, were rather continuous besides a small shut down that occurred in October of that year, It was mainly done to install new components to the grinding circuit that would increase the mill capacity by 50%. Much of this mill installation had included a filter, thickener, 30 flotation cells, a rod mill, and conditioner tank, Company officials from the Kam-Kotia Porcupine Mines would also add a zinc circuit to their milling facility. Besides the shutdown this mill was still able to process a huge amount of ore that totalled 400,091 tonnes that came from a daily production rate of 1,096.1 tonnes. After processing so much ore the company was able to produce 34,035.3 dry tonnes of copper concentrate. The mill head within this time period was known to have average anywhere between 1.5% and 2.5% copper as it was treating high-grade ore, and low-grade ore. With this production the company was also able to produce a small tonnage of zinc concentrate that was produce in November, 1963, and soon sold to the British Metal Corporation under contract. It was reported that this whole entire shipment had amounted to 44.5 tonnes grading 51.6% zinc. In this year alone the mill also produce silver that totalled 8,509.7 ounces of silver as it was paid for in copper concentrates.
Ore reserves within 1963, were quite high as the open-pit, and the stock piles had contained 125,168 tonnes that graded 1.557% copper. It was also determined that the B Zone had it's own reserve of 1,170,528 tonnes that graded 2.174% copper. Anther ore reserve calculation was also taken from the C zone that totalled 406,495 tonnes of ore, and had it's own grade of 1.986% copper. More ore reserve calculations we're made in the M60 Zone, which totalled 146,584 tonnes of ore that graded 1.197% copper. Some more ore reserve calculations we're also being made on the north zone that totalled 90,983 tonnes of ore, and graded at 1.548% copper. Besides these production areas the mine also contained a low grade sulphide ore that had a reserve total of 250,792 tonnes of ore that graded 0.772% copper The last estimation that was made had been conducted on the low-grade green stone ore that totalled 269,200 tonnes of ore, and graded at 0.808% copper. In total estimation this had include a copper reserve of 2,459,750 tonnes of ore, with an average grade of 1.733%
Some more calculations soon became conducted on the zinc reserves that we're still left within this mining operation. The zinc ore-pile alone was rapidly increased when it totalled 17,700 tonnes of ore that graded 3.11% Zinc. Another ore-body called the A Zone was also calculated outside the open pit as it totalled 387,275 tonnes of ore that graded 4.28% Zinc. Some more reserve calculations we're soon conducted on the B Zone that contained 286,199 tonnes of ore, which graded at 0.773% zinc. One last section that was calculated became determined as the C Zone which contained a reserve of 406,495 tonnes of ore that graded 1.710% Zinc. In total estimation the company soon calculated a reserve of 1,097,669 tonnes of zinc ore that graded 2.944% zinc.
Mining operations continued to take place in 1964, as the open pit was well into production during this time period. This was also the year that the company would process underground ore at it's on-site milling facility. Even employment within this mining operation was high when the Kam Kotia Porcupine Mines, Limited, had employed 258 miners. Besides employment the shaft was additionally sunken to another 176 feet as it was now reaching 1,035 feet below the shaft collar. More development would continue to take place when company officials establish a development footage of 10,585 feet of drifting, 2,436 feet of crosscutting, and 7,325 feet of raising. In all development footage the underground workings had totalled 10,585 feet of drifting, 2,625 feet of crosscutting, and 7,325 feet of raising. Some more explorations would also take place when 385 underground holes became drilled, that totalled 18,209 feet, and another 51 surface holes had totalled 16,588 feet. As mining operations continued within the Kam-Kotia Mine, the company would hoist a serious amount of ore that totalled 250,594 tonnes. It was also reported that the open-pit operation would supply another large amount of ore that totalled 388,252 tonnes.
Milling within this time period was also quite heavy when it had processed 638,846 tonnes of ore that had it's own daily rate of 1,750 tonnes of ore. It was reported by the company that the mill had operated throughout 1964 with only small shutdown occurring due to repairs, and maintenance issues. Much of this was escalating on the grinding circuit that was revise in order to meet expectation by 20% or 300 tonnes a day. Further into expanding the company also installed 6 by 8 foot mill to regrind rougher zinc concentrates, and to improve the recovery, and grade of zinc concentrates. In total production the company was able to obtain 34,263 tonnes of copper concentrates that average 20.92%, and 3,319.5 tonnes of zinc concentrates that graded 50.3%. During this time period it was also reported that the company extracted 49,758 ounces of silver. and 236.92 ounces of gold.
Even ore reserves within 1964 we're rather still high as continuous ore-bodies we're discovered from diamond drilling. It was reported that the ore in place contained 1,400,000 tonnes grading 1.74% copper, and 0.94% Zinc per a tonne of ore. The stockpiles during this time period had contained their own reserve of 250,000 tonnes grading 0.772% copper, and 1.50% Zinc. Company officials from the Kam Kotia Porcupine Mines, Limited had also determined that the zinc ore-body contained a reserve of 367,000 tonnes that graded 0.34% Copper, and 4.15% Zinc. In total reserves the mine contained 2,037,000 tonnes of ore, and another 450,000 tonnes of possible ore that graded 1.75% Copper. No other development or production had taken place during this time period as the mine was still very productive.
No expansion we're made to the shaft but the underground workings were further developed in 1965. It was reported that officials from the Kam Kotia Porcupine Mines, Limited had constructed a 15,747 feet of drifting, 4,823 feet of raising. As the mine working became expanded the company now had a total development footage 26,360 feet of drifting, 2,625 feet of crosscutting, and 10,369 feet of raising. In addition to this development the company also conducted a huge underground diamond drilling campaign of 538 holes that totalled 81,229 feet, and another 7 surface holes, which totalled 3,078 feet. Much of the major construction during that year was commonly aimed at expanding the company's office.
It was reported that the company would end up hoisting a serious amount of ore that totalled 513,350 tonnes of ore, and the open pit supply a small amount of ore that totalled 90,000 tonnes. Company officials from the Kam Kotia Porcupine Mines, Limited would also suspend mining operations at the open-pit mine on April, 1965. The reason for this to have happened was because the ore became exhausted, and only low grade material had remained on the pit walls. But this ore was rather very low in grade to warrant further development in recovering this material. One of the most productive sections in this open pit operation was known as the A East zone that produce 30,008 tonnes of ore. This newly discovered vein zone was also going to be further developed from underground mining operations. In all development the company had broken down 3,221,714 tonnes of ore, while mining another 1,863,745 tonnes of ore, and drilling to a total of 706,675 feet in the open-pit alone.
All Milling operations we're rather consciously operated through out 1965, except for 27 days when the company was treating ore from the Texas Sulphur Gas Company's Kidd Creek Mine on a pilot plant basis. Almost all production time was rated at 96% besides the remainder of the time being spent on Maintenance, and Repairs. Production from the company's milling facility had treated a total 53,600 tonnes of ore for the first 9 months at a rate of 1,765 tonnes of ore on a daily basis. In addition to this the mill would end up treating a total of 597,623 tonnes that came from this mining operation. It was strongly known to have produce 41,239.9 dry tonnes of copper concentrates at a recovery grade of 19,65% per a tonne. Besides copper the mill would also produce 7,673.8 tonnes of zinc concentrates that had a grade of 48.1% per a tonne of ore. During 1965 the company's mill was also able to extract 64,086.32 ounces of silver, and 580.70 ounces of gold from this production.
By this time the ore reserves in the mine had increased in 1965, when the mine still had 2,339,000 tonnes of ore within the Kam Kotia Mine. This whole entire reserve it self had estimated to contain a grade of 1.61% copper, and 1.80% Zinc. It was also reported that the company had also determined that their might be another possible ore-body of 1,525,000 tonnes that graded similar to the production grading. At the time it was said that this area needed to be further examined to make sure that this estimation was correct. Nothing else would take place in 1965 as the mine was still active with a lot of ore still to be extracted from underground operations.
A historical change to the mine would be made in 1966, when the Kam-Kotia Mine, and the Cobalt Refinery became an operating division of Kam Kotia Mines, Limited. It was during this time period when the four compartment No. 1 shaft was sunken to another 941 feet as it was now reaching a depth of 1,974 feet. This whole entire sinking phase would establish new levels that became determined as the 6th, 7th, 8th, 9th, and 10th levels. Each of these newly developed production zones became cut, and stationed on the mines 1,058, 1,260, 1,436, 1,611, and 1,877 foot section. Most of the underground development during that year was focus on expanding these levels when 5,499 feet of drifting, 980 feet of crosscutting, and, 2,081 feet of raising was done. This had also increase the development footage of the mining operation when it now totalled 31,849 feet of drifting, 3,416 feet of crosscutting, and 12,058 feet of raising. Even diamond drilling became quite extensive when 586 holes became drilled that totalled 85,303 feet from underground, and another 49 holes totalling 15,050 feet from underground. Some construction also took place when the company was adding another addition to it's warehouse.
In all production the company was able to hoist another huge amount of ore that totalled 507,631 tonnes in 1966. It was reported the on-site milling facility had treated a total of 566,722 tonnes of ore that year alone. Even the milling facility had processed some ore from the Texas Gulf's Kidd Creek Mine project that was located nearby. Much of this production had came from a continuous capacity of 1,765 tonnes on a daily basis as the mill was active for most of the year. It was reported that the company did not treat any ore from the last 101 days of that year, as milling was being done for the Texas Gulf Sulphur Company Some repairs, and maintenance had cause the mill to only recover 96.5% of all the ore that year. All production from the Kam-Kotia Mine had mainly came from the underground workings that consisted of 1.5% to 2.0% copper, and 1.65% to 2.5% zinc per a tonne of ore. The Zinc Circuit was also another major part to this operation as it would be improved in 1965. In addition to this the company would not make any additional changes to the mill circuit during 1965 as everything was operating smoothly. But the company would engage in tests, and studies that became establish to investigate finer gridding on metal recoveries to increase milling by 10 to 15%. In regards to this the company would end up purchasing another cone crusher to provide three stage crushing, and to make finer mill feed. In all production the mill was able to produce 33,592 tonnes of copper concentrate that graded 19,91% copper per a tonne of ore. Besides copper the mill also produce 10,453 tonnes of zinc concentrate that graded 49,20% per a tonne of ore. Even a large amount of silver was extracted that ended up totalling 78,077 ounces, while extracting 672 ounces of gold that year. Most of this production was taken from blast hole stopes with minor tonnage from shrinkage stopes, and development. Not to mention stope development expense was extreamly high that year, and almost all development was focus on stopes within the 5th level. Within this time period the company also processed 78,077 ounces of silver, and 672 ounces of gold from all production in 1966.
Ore reserves within the mine had slowly decrease but this operation still contained a total of 2,169,000 tonnes of ore. It was reported that much of this ore had graded 1.55% copper, and 1,93% zinc per a tonne of mined ore that came from the Kam-Kotia Mine. This mining project also had another probable ore reserve of 612,000 tonnes of ore, while also estimating 1,200,000 tonnes of possible ore that could be mined. In addition to this it was estimated that this new ore-body had graded 1.60% copper, and 1.50% zinc per a tonne of ore. There was also a small tonnage of ore that was broken, and still waiting to be processed as it totalled 380,000 tonnes. By this calculation the company was able to determine that this mine had its own reserve 4,361,000 tonnes of ore. No other development or production was escalated on this mining zone in 1966 as it was still producing a good amount of ore.
In 1967, the Kam Kotia Mines, Limited would not sink the shaft further as it was still at it's normal depth of 1,974 feet below the shaft collar. Instead most of the workings we're being worked on as the company's miners soon had constructed 9,220 feet of drifting, 1,300 feet of crosscutting, and 5,221 feet of raising. This lateral development soon gave a total footage of 41,069 feet of drifting, 4,716 feet of crosscutting, and 17,279 feet of raising. Even further diamond drilling would take place as the company drilled 271 holes, totalling 81,421 feet from underground. Within this time period the Kam Kotia Mines, Limited also had place construction phase to expand the head-frame by adding a hoist room, and it's compressor house.
Besides development the company's on-site milling facility was rather operated continuously throughout this year. Mill production operations we're rather increased in 1967, when the mill had operated at about 97.3% within this time period. It was also considered that the mil was operating on a daily average of 1,862 tonnes, and treated 679,677 tonnes of ore that year. At least 80% of the production was reported to have came from underground, but the remainder had been taken from the low-grade surface stockpile that was build up when the open pit was in operation. The ore taken from the stockpile was known to have only totalled 103,831 tonnes of ore in all production. As development continued the company was well extracting a rich ore-body that increased the mill heading by 2.0% copper, and higher. During 1966, the company's zinc circuit had produce poor recoveries, and poor concentrate of the ore but was increased late in the year. Almost all test studies on grinding the material to a finer product was completed in 1967, that soon resulted in replacing the secondary grinding mills with two 12 by 14 foot mills, that were driven by a 1,220 H.P Motor. In all production the mill was able to produce 40,765.3 tonnes of copper concentrate that graded 19.91%. Some more production was also aimed at extracting the zinc as it produce 13,809.94 tonnes of zinc concentrate that graded 48.60%. Besides copper, and zinc, the mine also produce 77,880 ounces of silver, and 809.9 ounces of gold. . . . .
The mine within that year also had a huge ore reserve that totalled 2,100,000 tonnes of positive ore that grade at 1.38% copper, and 4.00% zinc. In addition to this the company also had broken down ore that totalled 150,000 tonnes of ore that graded 1.0 % copper, and 1.90% copper from the stock piles. Another estimation of 480,000 tonnes of broken down ore was still within the mine that graded 0.36% copper, and 4.60% Zinc per a tonne of ore. The company also estimated that is had total of 100,00 tonnes of probable ore that graded 1.50% copper, and 1.60% Zinc. More estimations we're also taken from diamond drilling that totalled 650,000 tonnes of possible ore that graded 1.50% copper, and 2.15% zinc per a tonne of ore. From all this estimation it was reported that the company had 3,480,000 tonnes of ore still within this mining operation.
Mine development in 1968 was mainly confined to further production on the mines levels as the shaft was still at its original depth. In all development the company's workforce of 325 miners we're able to complete 10,191 feet of drifting, and ,706 feet of crosscutting. This whole entire development soon gave a lateral development footage of 51,260 feet of drifting, 4,716 feet of crosscutting, and 20,985 feet of raising. No other development was done on the underground workings besides placing major construction phase towards expanding the existing buildings. Most of this expanding was done to convert the Hoist Room in the main office, engineering office, and mine dry, Some more expansions had also taken place on the concrete loading dock, and the switchboard.
Milling operations within the Kam-Kotia Mine project became very extensive as the mill treated 669,404 tonnes that average 1,837 tonnes on a daily basis. In general being the milling facility was also upgrade within the last two month of the year as it now had a capacity of 2,100 tonnes per a day. Most of the ore within this time period had came from underground mining operation, and another 59,500 tonnes was taking from the stockpile. Within this time period the company also made major changes to the milling facility, and crushing plant. In addition the company added a 5 1/2 foot Symons Standard Cone Crusher that was installed in June, and had allowed three stage crushing with an increase crushing capacity. The grinding section within this plant was completely rebuilt from scratch as the 4 small ball mills were replaced by two 12 by 14 foot ball mills. Much of this change was made became it would increase the crushing capacity to about 2,700 tonnes of ore per a day. This would also lead to major changes in the mills circuit system as more flotation cells we're added about to be installed in 1969. In all production the milling facility was able to produce 40,856 tonnes of copper concentrates that graded 18,68% copper. From 1964, to 1968, the mine had produce significant amount of copper that totalled 270,417.2 tonnes of copper concentrate from a production of 4,072,427 tonnes of ore. Besides copper the mine also produce a fine amount of zinc concentrate that totalled 31,752.7 tonnes from a total of 665,889 tonnes of ore. From 1964 to 1968, the mine produce significant amount of zinc that totalled 67,490.9 tonnes that graded 49.05% per a tonne of mined ore. Even Silver was rather heavy when the mine processed 102,994 ounces from this mining operation. From 1964, to 1968, the Kam-Kotia Mine had produce a steady production of silver that totalled 397,660 ounces. More production was also escalated on the gold when the mine produce 910.5 ounces of gold that year, and had produce 3,210.1 ounces of gold from 1964 to 1968.
In addition the mining operation still had lots of reserves in it as the company estimated 1,465,000 tonnes of positive ore that graded 1.25% copper, and 4.0% zinc. It was also noted that a total of 254,000 tonnes was still within the ore-stock piles waiting to be processed. More so the company also had a total of 400,000 tonnes of broken down ore that was still within this mining operation. Further assaying soon revealed that this ore contained 0.40% copper, and 4.60% zinc. By this time the company also estimated a reserve of 100,000 tonnes of probable ore grading 1.25% copper per a tonne of ore. Diamond drilling also indicated a possible reserve of 250,000 tones that could be mined but need to be investigated further
To be continued, Only three more years of production left to do, plus the big mine disaster that took place here