Field observations indicate that the most favorable host rock is the open breccia, that’s composed of relatively small, altered rock fragments, embedded in the abundant quartz carbonate matrix. Much of the ore zones are rather enveloped by distinct altercation halos ranging In thickness from 0 to 150 feet, which are providing important targets in developing the breccia. For the most part, this altecation is commonly known to consist of sericitization, chloritization, and clay mineral altercation.
For the most part, the original discovery of sulphide mineralization was made in 1954, which was discovered in a bed of small creek that runs through the present mine site. It was later optioned to Sylvanite Gold Mines, Ltd who drilled 21 surface holes, totalling 8,331 feet of core, and the option was allowed to drop in 1956.
In 1962, the diamond drill program on the main Breton Zone had included a pattern series of vertical holes to 500 feet. It was also this point in time when the Tribag Mining Company, Ltd had obtained full control of the property. Within this time period the company had launch their own exploration program that consisted of geological mapping, a geophysical survey, and diamond drilling. Exploratory work at the time was concentrated on the Breton Zone. It was rather to the end of 1962, when a large copper mineralization was outline in order to commence underground development, and shaft sinking.
1963 - Tribag Mining Company, Ltd.
It was within 1963, when the Tribag Prospect was being rapidly explored for the potential of copper and silver ores. The property at the time was also staked by the Tribag Mining Company, Limited who became incorporated on December, 1926. For the most part, this company it self had a total capitalization of 3,000,000 shares of $1 par value, of which 2,752,000 shares had been issued. Ownership, and direction of the company was done by C. H. Franklin who was the president and director of this company. He additionally hired H. E. Heald as director, and Miss E. H. Linton as secretary treasure of the company. The deepest hole that was drilled to 1,300 feet had now reach the bottom of the Breton Zone at the time.
Exploratory work was being done on a copper prospect, that comprised of 135 claims in township 27, and 28, range 13, within the District of Algoma, Ontario, Canada. Development at the time was focus on further prospecting the area when a three-compartment vertical shaft was sunk to 50 feet on claim SSM. 35137. Diamond drilling at the time was also started when 76 surface holes, totalling 50,542 feet in length became driven. New construction at the mine site was also rapidly advancing within the operating year of 1963. This had included the construction of two bunk-beds, 1 cookery, 1 office, and warehouse building, 1 mine dry, 1 machine shop, 1 oil house, and 1 head-frame. Prior to this, it was also followed by the installation of additional equipment that consisted of 1 hoist, one 175 K.V.A generator, one 12.5 Kva generator, and three compressors of different makes. Contracting at the time was also being done by the Munex, Limited, who employed 80 men under the direction of H. G. Donaghue. It was in June, 1963, when the pattern zone was expanded, and it was also decided to deepen some of these holes, which resulted in the indicated H Zone of higher grade ore, starting at about 600 feet. Work which was undertaken on the Breton Zone had indicated a widespread of copper (Cu) mineralization. It was also at this point in time when several of the holes which were assayed over the entire length drilled, have average several hundreds of feet running 0.50% to 1.00% Copper (Cu) per tonne. Ore indications to a depth of 900 feet had also permitted several tonnage calculations depending on the cut off grade used. Results from drilling had indicated several high-grade copper assays that were 3% or better in grade, with some silver and molybdenite. Underground development was rather required in order to determine the grade, and tonnage that can be economically mined.
1964 - Tribag Mining Company, Ltd.
Mining operations during the year had progressed from May 20th , to December 31st, 1964. During this time period it was reported that shaft sinking had continued onward to a depth of 788 feet below the surface. Levels within the Tribag Copper Prospect became establish at depths of 368.8, 620.8 and 746.7 feet, which were called the 375, 625, and 750-foot levels. Lateral development which became completed had comprised of 1,837 feet of drifting. This was also followed by surface trenching that totalled 250 feet in length, and had average 3 feet in depth. Following this development there was also an average of 68 underground holes completed, totalling 11,513 feet, and 25 surface holes, totalling 11,827 feet in length. New construction at the time was also followed by 1 assay office, 1 sample plant, and 1 crusherhouse. New equipment that was added had included 1 Blake Jaw Crusher for the crusherhouse, and another one for the sampling plant. Production from the mine during 1964, had amounted to 1,434 tonnes of ore that became hoisted from the underground workings. Within this time period the Brenton Zone was considered to have been the primary target of development, and explorations. It was during the late fall when a find of considerable importance was made in the area of the West Brenton Zone, some 3,000 feet west of the Brenton Shaft. Trenching along with blasting had opened up an important copper showing with molybdenum. Work within this area was rather suspended by the years end due to the winter conditions.
Surface Reassistance on the East Breccia Zone had also turned up many more surface showing, and had considerably extended the East Breccia Zone. Prior to discovering these showings, it became reported that a large, and apparently major zone would necessitate an extensive and detailed exploration program. The Zone it self is located 6,000 feet east of the Breton Shaft operation.
Within this time period it was also concluded that there was a fourth breccia on the Batchawana Property. This zone had since then become determined as the South breccia Zone, and it lies 1,500 feet south of the Breton Shaft
1965 – Tribag Mining Company, Ltd.
Shaft sinking within the Tribag Copper Prospect had continued onward within the operating year of 1965. It was during this time period when the three-compartment shaft had reach a depth of 1,251 feet below the surface. Prior to this, the 900 foot, 1,050 foot, and the 1,200-foot levels became establish at depths of 896, 1,046, and 1,196 foot sections. Lateral development that became completed had amounted to 4,120 feet of drifting, 1,808 feet of crosscutting, and 614 feet of raising. This had rather given a total development footage of 5,957 feet of drifting, 1,808 feet of crosscutting, and 614 feet of raising. Development was also followed by surface trenching for length of 250 feet, and had average a depth of 3 feet. A large-scale diamond drilling program was undertaken in which amounted to 293 underground holes, totalling 39,692 feet, and 39 surface holes, totalling 12,700 feet in length. New construction at the time was also followed by the erection of a cold storage building, and the compressor room extension. Even a large amount of ore became hoisted during the year in which had amounted to 16,563 tonnes of ore that was stockpiled.
1966 – Tribag Mining Company, Ltd.
Some more changes were made during the year as the mill, and auxiliary equipment had been moved from the Pickle Crow Property to the Tribag Property. Prior to this, the company it self had also place a contract for hydro electrical power to be supplied within this time period. Construction work at the time was also very well progressing towards building a 400 tonne per day copper concentrator. With mining operations continuing to expand the company had also added mobile homes that were place along Batchawana Bay. Major construction at the time had also taken place when a new office, pumphouse, dry building, hoist, compressor, switchhouse, blacksmith shop, and garage became constructed.
Lateral development within the operating year of 1966, had amounted to 3,219 feet of drifting, 145 feet of crosscutting, and 324 feet of raising. The total development footage to the end of December, 1966, had amounted to 8,890 feet of drifting, 1,953 feet of crosscutting, and 931 feet of raising. Prior to this development an escapeway was also being driven, and a limited amount of stoping had progressed. Hoisting which was achieved during this time period of operating had amounted 3,720 tonnes of ore that was stockpiled, and awaiting treatment. Even a large-scale diamond drilling program was commenced that consisted of 179 underground holes, totalling 24,928 feet, and 8 surfaces holes totalling 2,020 feet in length became completed. No addition shaft sinking was commenced during the year as the company had been confined to level previously developed to a depth of 1,251 feet. The total development footage to the end of December, 1966, had amounted to 8,890 feet of drifting, 1,953 feet of crosscutting, and 931 feet of raising. Underground development work had continued on the 900-foot level, and the main drive at this horizon is presently out 350 feet from the shaft with a grade of 1% copper (Cu) per tonne. Its intention towards development was mainly head towards the V-41 surface drill which intersected 41.6 of 1.93% copper at approximately 50 feet beyond the present face. Plans at the time were also aimed at driving a crosscut at a distance of 600 feet east from main shaft operation that would be continued north for 350 feet to test the ore zone. Much of this newly indicated ore zone was intersected by surface drill hole V-47 which cut 78 feet of 3.2% copper (Cu) just below the 900-foot horizon.
A crosscut was also being driven north from the main drive on the 1,200-foot level at 600 feet east of the main shaft operation. Most of this development work was aimed at intersecting an apparently new zone encountered in a flat diamond drilling hole. This drill hole, No. 9U-7 had intersected 33 feet of 1.50% copper (Cu) at about 500 feet north of the main drive. Work at the time was also confined to exploring three flat holes drilled south from the main 1,200-foot drive which intersected a zone of at least 450 feet long, but is still open.
Diamond drill hole No. 9U-23-36.7 had intersected 0.15 M0S2; and 9U-19- had intersected 67 feet of 0.13 M0S2, and at the time a third hole had intersected 50 feet of the zone, and was still in with molybdenum, showing throughout the 50-foot zone. This zone of molybdenum appeared to have trended to the south, and west as it lies 350 feet south of the main 1,200 foot drive.
1967 – Tribag Mining Company, Ltd.
All mining operations had continued throughout the year, with the exception of milling that took place from May, 15th to December, 31st, 1967. It was at this point in time when development consisted of 2,368 feet of drifting, 154 feet of crosscutting, and 1,882 feet of raising. Since the commencement of developing this project it was reported that all diamond drilling, and development work had been confined to stope preparations. The biggest part of development during the year was aimed at completing a waste pass system from 1,050 foot level to the 375 foot level, and a loading pocket was constructed on the 1,050-foot level. As underground development, and detailed geological studies were being done it was reported that an indication was made in regards to structural control of ore deposition. It was revealed that a domed structure was located in the central part of the Breccia Pipe, which contained two major zones with number of subsidiary branches. As this became outline it was revealed that the domed nature of the ore zone had dictated the mining method used. The mining methods which were commenced had been aimed at shrinkage stope methods in order to extract the steeper portion of the ore. Following development, it was also reported that scraper stopes were being done on the flatter portions of the mine. Other development at the time was aimed at engineering a long hole blast stope that was constructed between the 900 and 625-foot levels. Most of this was done due to the convergence of several zones which permitted the use of this lower cost method. It was rather by the years end when 19,359 tonnes of ore were broken within the shrinkage stopes, and 7,196 feet of long hole drilling had been done in the blast hole stopes. By the end of 1967, it was reported that the main ore zones were well outlined and their continuity establish by drilling, and raising. Further statements reported that the visual sharp assay walls had permitted clean mining to the natural limits of ore mineralization. Almost all the development work done during the year was directed toward preparations of known ore zones. There was also another blast hole stope that was being developed on the south zone between the 625-foot level, and the 325-foot level by drifting, and slashing on the 625-foot horizon. After milling 100,326 tonnes of ore, it became reported that the ore reserves had increased from 600,000 tonnes to 745,522 tonnes at 1.75% copper (Cu). Milling during this time period had treated 100,326 tonnes of ore, grading 1.90% copper (Cu), which produce 3,687,681 pounds of copper, and had concentrate grade of 30.76% Copper per tonne. Silver recoveries from the mine amounted to 31,570 ounces of silver (Ag), and the concentrate production totalled 5,994.8 tonnes at a grade of 30.76% copper, and 5.3 ounces of silver per tonne of ore. From all this production, it was also stated that the ore was trucked to Sault Ste Marie for shipment by rail to Noranda Mines, Ltd for smelting, refining, and marketing. Prior to examinations it was also revealed that the Brenton Breccia Pipe is 1,300 feet long, and 400 feet wide at the surface. Further so this pipe is strongly considered to widen slightly with depth, and 900 feet wide at the 1,200-foot level. Drilling which was done had intersected the Breccia Pipe to a depth of at least 2,100 feet below the surface. All mining operations within the Tribag Mine were mainly confined to levels above the 1,200-foot horizon. Other statements stated that the preproduction ore reserve was estimated at 600,000 tonnes grading 2.2% copper (Cu) per tonne of ore. Another Breccia Zone is known to also occur one and a half mile south of the Brenton Zone, and is 2,000 feet long and 700 feet wide at the surface.
1968 – Tribag Mining Company, Ltd.
Development in 1968, was continued onward when 1,072 feet of drifting, 488 feet of crosscutting, and 924 feet of raising was done. In addition to this, shrinkage stopes had rather provided the major portion of the mill feed, and by the years end the blast hole stope was making substantial contribution. It was also at this point in time when some difficulty was encountered with fragmentation in the initial blasts. Within this time period the problem of ore handling was resolved, and the blast hole stope had produce at satisfactory rate. Even operating costs were slightly hire due to the large increase of broken ore reserves required in shrinkage stoping, and the development required for the blast hole stope. The total lateral development to date had amounted 12,330 feet of drifting, 2,655 feet of crosscutting, and 3,736 feet of raising. Diamond drilling during the year had amounted to 112 underground holes, totalling 23,206 feet, and 26 surface holes, totalling 13,335 feet in length. Construction at the time had also continued when a pumphouse, and core rack became engineered at the time. An underground diamond drilling program was also commenced, and directed at outlining known ore zones, and to explore the breccia below the 1,200-foot level. Underground mining, and drilling were also very successful in locating ore extensions in some areas. After milling 157,787 tonnes at 1.82% copper during the year, the ore reserves had amounted to 689,522 tonnes at 1.67% copper (Cu). In addition to this, it had also not included any provisions of ore within the West Breccia, which was pending examinations at the time.
Exploratory work that was suspended during the preproduction, and early production stages had been once again commenced. Surface diamond drilling was rather focus on the West Breccia Pipe, which was 2,500 feet southeast of the Brenton Breccia. It was also during this time period when two new ore zones became discovered at depths of 75 feet, and 600 feet below the surface. In order to develop the upper zone, the company had driven an adit, and some ore from this area would be milled in July. Other exploratory work was also being scheduled to commence on the south, and east breccia zones within the upcoming months. This would also included further geologically mapping the area in hopes of finding similar breccia pipes in the area.
Milling during this time period had treated a total of 157,787 tonnes of ore grading 1.82% copper. From all recoveries made the on-site milling facility had additionally recovered 5,562,840 pounds of copper that year. No additional equipment was added during the year as the mill had operated at satisfactory levels of 97.9% extraction.
1969 - Tribag Mining Company, Ltd
In 1969, a feasibility study was undertaken at the Tribag Mine in order to determine it potential as a deep underground mining operation. This program had involved 18,000 feet of diamond drilling that was carried out in 12 surface holes, including four deep holes that were put down to 2,000 feet. Each of these holes were drilled as boundary holes in regards to joint venture agreements with Noranda Mines, Ltd. It was hole No. 9 which had encountered good widths of mineralization at 1,450 feet, and at the 2,000-foot level. Copper assays which were taken from the core samples were considered below commercial grade but encouraging, and subsequent drilling did not improve the grade. While drilling had not pick up a economical ore-body, the property is still considered to be interesting at depth. However, more issues had come upon the company when it was handicapped due to the lack of drilling locations because of surface buildings.
Diamond drilling that was done on the Brenton Breccia had indicated approximately 500,000 tonnes of 2% Copper (Cu) down to the depth drilled. Much of the domed structure of the mineralized zone is considered to have been favourable for the occurrence of similar ore-bodies at depth. A greater amount of tonnage per vertical foot had also been anticipated at depth because of the increasing width of the Breccia. The more recent discovery of the East Brenton Breccia, had also presented an excellent prospecting bet with large tonnage potential. The mineralization is of the replacement type, and there is no reason to suspect that the structural conditions may be similar to those of the Brenton Zone. More so this surface area was also considered to have been approximately six times the size of the Brenton Breccia.
A large portion of the property was controlled by the company, in which contains geological and structural conditions which are known as suitable environments for the deposition of ore deposits. In addition to this, there are several promising showing and ample acreage in which to find more than one economical deposit. Further so there are at least three other known mineralized occurrences which need to be tested, including the large West Breccia.
The east Breccia Zone Adit was stopped due to winter conditions, and it had penetrated 296 feet into the hillside, and returned an average much sample of 0.22% Copper with values of Molybdenum. At the time it was determined that the adit had 1,200 feet to go in order to explore the East Breccia Zone up to the previously drilled area on the N.W. corner. It was also evident that the zone was believed to have been enlarge on the basis of current geophysical work. Prior to this, it was also stated that 12 surface drill holes in this area had indicated a tonnage of 500,000 tonnes grading 0.90% copper (Cu) close to the surface. Surface trenching over this area had also indicated fair values of molybdenum in addition to the copper previously mentioned.
In addition to the information already provided, the Brenton Breccia Zone should provide one hundred million pounds of copper. Underground diamond drilling had also continued with two drills on the 1,050-foot level, and two more drills on the 1,200-foot level. The main zone or the Brenton Zone had received most attention, but considerable amount of work had also been done on the East Breccia Zone. In regards to the West Breccia Zone, in which is to the south, and west of the main zone, is rather relatively untouched.