The Teslin Lake occurrence is located along the east shore of northern Teslin Lake, 2 kilometres south of the Yukon border, and about 87 kilometres northeast of the community of Atlin.
Along the east shore of northern Teslin Lake, a series of mafic to felsic tuffaceous rocks, quartz sericite schists, and siltstones of the Upper Devonian to Upper Mississippian Big Salmon Complex are exposed along a kilometre-long section of lakeshore. All are phyllitic to schistose and relict textures are rare. Several zones display widespread pyrite and traces of chalcopyrite. For example, at the south end of the outcrop belt, a 20-metre thick locally strongly pyritic felsic metatuff is sandwiched between mafic metatuff. The gossanous layers are up to 30 centimetres thick and typically contain 10 per cent or more pyrite. Chalcopyrite occurs as sparse centimetre-sized clots and irregular stringers. It is evident at several localities that the zone has been previously sampled. Analysis of a single grab sample yielded 2.2 per cent copper and 28 parts per million (28 grams per tonne) silver (Fieldwork 1997, page 6-17).
In 2007, an airborne VTEM geophysical survey was flown on behalf of Strategic Metals Ltd. totalling 354 line-kilometres. In addition, three soil sample lines were oriented to cross the stratigraphy and coincident weakly to moderately anomalous copper (up to 162 parts per million), lead (up to 55 parts per million), and zinc (up to 100 parts per million) values were obtained within or immediately adjacent the felsic volcanic unit.
In 2008, Strategic Metals continued work on the Tes property with soil geochemical sampling, geological mapping, and prospecting. Two styles of mineralization were noted on the property: fine disseminated sulphides and structurally controlled silica flooded zones. Chip samples collected returned 452 parts per billion gold, 9.6 parts per million silver, 2.36 per cent copper, and 115 parts per million zinc over 10 centimetres, and 223 parts per billion gold, 4.5 parts per million silver, 0.78 per cent copper, and 54 parts per million zinc over 40 centimetres. Soil sampling outlined three anomalies: Anomaly C, which correlates with the known mineralization, contains elevated gold, copper, and zinc values, and is open to extensions to the east; the other two anomalies (A and B) have elevated copper and zinc values but lack gold. Anomalies A and B coincide with geophysical anomalies (Assessment Report 33584).
In 2012, Strategic Metals Ltd. collected a total of 1135 soil samples from a large grid in the northwestern part of the Tes property. The sampling connects and overlies the 2008 grids and traverse line. The 2012 soil sampling program better defined Anomaly B and significantly increased the size of Anomaly C. Strongly anomalous gold, arsenic and antimony values appear to be associated with the northwest-trending regional scale fault that cuts across the northern portion of the property.
