The TRS2 (TR South II) occurrence is located at an elevation of approximately 1525 metres on a gentle northeast-facing slope, south of Twin Creek and approximately 8.2 kilometres northwest of the creek’s junction with Kwanika Creek. The Takla-Rainbow (MINFILE 093N 098) is located approximately 2.8 kilometres to the northwest.

Regionally, the area is underlain by undivided volcanic rocks of the Lower Jurassic Twin Creek Formation (Takla Group) that have been intruded by Lower Jurassic monzodioritic to gabbroic intrusive rocks and Lower Cretaceous granitic intrusive rocks of the Hogem Plutonic Suite. A complete summary of regional geology and structure can be found in the Takla-Rainbow (MINFILE 093N 082) occurrence.

Locally, trenching has identified tuffs, which may be porphyritic, containing hornblende or plagioclase phenocrysts, or in polylithic volcanic breccias with a tuffaceous matrix. These rocks vary from competent to strongly fractured, with fractures showing a wide variety of orientations. The volcanics host quartz veins, up to 0.25 metre wide, within silicified and clay-altered zones, up to 29 metres wide, hosting disseminated pyrite and trace galena. The quartz veins are orientated at 125 to 157 degrees with variable dips.

In 1990, sampling of trenches yielded up to 12.71 grams per tonne gold and 124.4 grams per tonne silver from a 0.2-metre-wide quartz vein in trench TR-90-T1; 5.63 grams per tonne gold and 16.7 grams per tonne silver from a 0.17-metre-wide quartz vein in trench TR-90-T2 and 2.86 grams per tonne gold with 7.7 grams per tonne silver from a 0.25-metre-wide quartz vein trench TR-90-11 (Assessment Report 22372).

Work History

The area has been explored in conjunction with the nearby Takla-Rainbow (MINFILE 093N 082) occurrence and a complete exploration history can be found there.

In 1986, Imperial Metals completed a program of prospecting, geological mapping and geochemical (rock and soil) sampling on the TRS, TRS2 and TRN grids of the Takla-Rainbow property. On the TRS and TRS #2 grids, several large gold anomalies up to 450 by 150 metres and 500 by 75 metres as well as numerous smaller gold anomalies were present. Numerous silver anomalies were present, the largest measuring 500 by 150 metres.