The geology of the Bald Eagle occurrence area is dominated by coarse-grained quartz diorite of the Paleozoic and/or Mesozoic Westcoast Complex, containing slices of metamorphic rock. Muller (Geological Survey of Canada Open File 821) has mapped a northwest trending body of limestone of similar age, in the vicinity.

Magnetite occurs, mixed with highly metamorphosed, fine-grained rock and iron pyrite, in a prominent bluff facing south. Fine grained dyke-like stringers and irregular masses of aplite occur in places within the magnetite. The deposit is confined by bedrock walls along its eastern margin where it is in contact with a garnetized phase of granite, and along part of its northwest edge where it lies against a small exposure of hornblende diorite. An igneous contact with limestone was noted farther up the hill.

The deposit outcrop measures 23 by 15 metres. An adit is driven 22 metres into the bluff, about 12 metres below the deposit. At the end of the tunnel a drift was run for about 14 metres. No ore was struck either in the tunnel or the drift. A sample of the ore assayed 60.7 per cent iron, 13.6 per cent silica and a trace of both sulphur and silica (Minister of Mines Annual Report 1916, page 293).