The area is underlain by (Triassic to Paleozoic) rocks consisting mainly of fine-grained, dark clastic sedimentary rocks and intercalated volcanics. They have been intensely folded and sheared with the consequent development of slaty cleavage and foliation. Secondary mica has formed in most of the sedimentary rocks giving it a phyllitic texture. The volcanic rocks have been converted to mainly greenstone and chlorite-amphibolite schist.

These rocks are intruded by a Cretaceous Coast Plutonic Complex granodiorite stock which is exposed along the western flank of Mount Strong.

The property is underlain by quartz-mica schists and quartzites that are intensely folded and host large masses of barren quartz as well as veins which are mineralized with pyrite, some sphalerite and rare speck of galena. The showing is comprised of two such quartz-rich zones which host minor disseminated pyrite, sphalerite, and galena.