The Ingraham's showing is located along the Illiance River, 8.75 kilometres due east of Alice Arm. The area was prospected for gold, silver and lead in 1918 and 1922 with some opencutting and a short crosscut completed.

The region is underlain by an assemblage of volcanics and sediments comprising the Upper Triassic Stuhini Group, the Lower Jurassic Hazelton Group and the Middle Jurassic to Upper Cretaceous Bowser Lake Group. This assemblage has been folded into a north-northwest trending anticline (Mount McGuire anticline) and regionally metamorphosed to greenschist facies.

The showing is hosted in variably schistose argillite, siltstone, sandstone and limestone of the Stuhini Group. The main showing is situated 200 metres to the west of Theophilus Creek (Copper Creek) on the north bank of the Illiance River. This showing consists of quartz and calcite veins in a porphyritic dike that strikes 060 degrees. The veins are mineralized with galena; minor disseminated galena is also found in the dike. A selected grab sample assayed trace gold, 377 grams per tonne silver and 28 per cent lead (Minister of Mines Annual Report 1922, page 63).

A second showing, consisting of stringers and bands of pyrite and quartz, is located on the same claim group. It occurs in a 3.7 metre wide bed of altered limestone. A grab sample from a 1.2 metre wide band of massive pyrite assayed 0.69 gram per tonne gold and 6.9 grams per tonne silver (Minister of Mines Annual Report 1918, page 70).