The Temagami-Cobalt Prospect was first operated in 1909, and was staked by the historical Temagami Cobalt Mines, Limited. It was at this time, when gold and cobalt was discovered in this area that started explorations on the west shoreline of Gosselin Lake. As explorations continued it was soon noted that several prospect shafts had been sunk within this area. One of these prospect shafts was sunken to a depth of 80 feet on claim T.R.1609, and another shaft that was 50 feet had been also driven on claim T.R,1836. There was also a small amount of openings made as drifts started to become extend within this property. No other development had occurred within that year of further prospecting this property extensively.
It wasn't till 1910, when more development continued to expand the shaft operations of the Temagami-Cobalt Prospect location. In addition to this it was reported that the shaft in claim T.R.1609 had been further sunken from the 50 foot level to the 100 foot level. Another shaft that was located on claim T.R.1836 had also been further driven to a depth of 85 feet. Further development would continue to expand the workings by drifting on 2 levels that we're establish at 50, and 100 feet. No other development would continue as the mine became abandoned from any more production that year. Only a small amount of information can be found on this claims, and the source of resource is unknown at this time.
During 1926, the Gosselin Syndicate had continued mining operation at the Gosselin Gold Mine, in Castle Township, Temagami, Ontario, Canada. Sinking at the time was also taking place when the internal winze shaft was deepened 90 feet further. A minor amount of drifting had take place at this time as a small drift was driven 14 feet. At the time, it was reported that the No. 2 Gosselin Shaft was only 73 feet deep, and the newly developed Internal winze shaft had been 225 feet deep. Most of the drifting was also started on opening up levels that became situated on the mines 35, 45, and 210 feet below the surface. No other development at the time had taken place as mining was officially suspended during this time period of operating.
During December, 1992, a program of line-cutting and magnetometer surveying was also carried out on the Gosselin Lake Property by D. Laronde, of Temagami, Ontario, Canada. A 17.3 km grid was establish and 16.0 km of detail magnetics was done. The work at the time was carried out from December, 8 to December, 23, 1992. Most of this became establish on a group of 7 continguous claims in Cassels Township, numbered, 1185965, 1185967, 1185968, 11185969, 1185970, and 1185971. Some rock at the time had been taken from the trenches in which gave encouraging assays found in the trench, and drilling. Some of the main mineralization in the area is known to consist of nickel-bloom, chalcopyrite, bornite, and pyrite associated with calcite-quartz veining. Much of the geology within the Gosselin property is primarily made up of medium grained Nipissing Diabase along promising looking shear zones. The veining within this general area is also narrow that averages 2 to 4 inches wide, and the shear zone width is amount 2 feet, in which requires detailed mapping.