Placer gold occurs on Hartz Creek in an area of Pleistocene and Recent glacial and glacio-fluvial deposits. Hartz Creek is a tributary of the Tahltan River and is located approximately 41 kilometres northeast of the community of Telegraph Creek.
Bedrock in the vicinity comprises porphyritic augite basalt, feldspar porphyry and basalt of the Upper Triassic Stuhini Group. Recorded production from 1941 to 1945 totalled 62 grams (Bulletin 28, page 59).