Development of the Cuniptau Mine began in 1933 with the sinking of a 115 ft (35 m)shaft and undergrounddrifting on the 100 ft (30 m) shaft level.[3] This was followed by deepening of the shaft to 240 ft (73 m), a new level established at 225 ft (69 m), drifting, crosscutting and raising in 1934.[4] Operations in 1935 were confined mostly to surface mineral exploration.[5] In 1936, the smelter was rebuilt to test out the possibilities of making a suitable matte from the mined ore.[2] High-grade quartzvein material from the Cuniptau Silica Deposit in Best Township was used as flux for the ore smelting.[6] Development of the Cuniptau Mine in 1936 consisted of underground drifting, crosscutting and raising, with exploration confined to surface and underground diamond drilling.[2] The mine office was stationed at Goward, a locality now in the municipality of Temagami.[2][7]
Cuniptau Mines reopened the Alexo Mine near Porquis Junction in 1936. Operations at this mining property during the year consisted of partial mine dewatering and sampling. The company shipped two cars of ore from Alexo to the Cuniptau Mine to increase the nickel content of the material being smelted.[2]
On January 10, 1937, the shareholders of Cuniptau Mines ratified a proposal to merge the company with the newly formed Ontario Nickel Corporation.[2] Ontario Nickel acquired the Cuniptau and Alexo mines in 1937 from this merge.[8]
^ abSandefur, Bennett T. (1942). "The geology and paragenesis of the nickel ores of the Cuniptau Mine, Goward Nipissing District, Ontario". Economic Geology. 37 (3). Society of Economic Geologists: 173.
^ abcdefgSinclair, D. G.; Tower, W. O.; Bayne, A. S.; Cooper, D. F.; Weir, E. B.; Webster, A. R. (1938). Forty-Sixth Annual Report of the Ontario Department of Mines. Mines of Ontario in 1936 (Report). Vol. XLVI. Queen's Printer for Ontario. pp. 33, 222.
^ abSinclair, D. G.; Cleland, R. H.; Cooper, D. F.; Keeley, E. C.; Webster, A. R. (1935). Forty-Third Annual Report of the Ontario Department of Mines. Mines of Ontario in 1933 (Report). Vol. XLIII. Queen's Printer for Ontario. p. 110.
^Sinclair, D. G.; Keeley, E. C.; Cooper, D. F.; Weir, E. B.; Webster, A. R. (1936). Forty-Fourth Annual Report of the Ontario Department of Mines. Mines of Ontario in 1934 (Report). Vol. XLIV. Queen's Printer for Ontario. p. 156.
^Sinclair, D. G.; Keeley, E. C.; Cooper, D. F.; Weir, E. B.; Webster, A. R. (1937). Forty-Fifth Annual Report of the Ontario Department of Mines. Mines of Ontario in 1935 (Report). Vol. XLV. Queen's Printer for Ontario. p. 174.
^Sinclair, D. G.; Tower, W. O.; Bayne, A. S.; Cooper, D. F.; Weir, E. B.; Webster, A. R. (1939). Forty-Seventh Annual Report of the Ontario Department of Mines. Mines of Ontario in 1937 (Report). Vol. XLVII. Queen's Printer for Ontario. p. 239.