The TT showing area is underlain by Upper Triassic Nicola Group volcanics intruded by Cherry Creek unit syenite of the Late Triassic-Early Jurassic Iron Mask batholith. Eocene Kamloops Group basaltic to andesitic flows, agglomerates, trachyte, siltstones and shales cap the Nicola volcanics. A northwesterly trending fault crosses the property.
Nicola rocks comprise fine grained to slightly porphyritic andesite with common accessory magnetite, hematite and specularite. A diamond-drill hole (DDH-N-1) is a deepening of percussion-drill hole 3 and intersected andesite and diorite mineralized with disseminated native copper grains in quartz-carbonate fracture fillings. The highest assay yielded 0.12 per cent copper from 128 to 131 metres depth in hole DDH-N-1 (Assessment Report 3890).
In 1972, a program of line cutting (81 kilometres), magnetometer (74 kilometres) and induced polarization (55 kilometres) surveys, geological mapping, soil sampling (96) and percussion (4 holes totalling 259 metres) and diamond (7 holes totalling 1260 metres) drilling was conducted on the TT claims on behalf of Northair Mines Ltd.