The Quatum occurrence is located along or near the northwest side of Quatam River.
The area is underlain by intrusive rock of the Jurassic to Cretaceous Coast Plutonic Complex. Samples from 10 kilometres west on Bute Inlet give an age of 97 to 99 million years by the potassium-argon method from biotite and hornblende (Geological Survey of Canada Open File 480).
Locally, malachite was observed (Geological Survey of Canada Open File 480).
In 2007, Archangel Resources took rock samples from the area. In 2010, AZ Copper completed a program of rock and soil sampling.