The Apex vein occurrence is located on a ridge on the north side of the Taylor River, approximately 1.1 kilometres south east of Doran Lake.

The area is underlain by pillow lavas of the Upper Triassic Vancouver Group, Karmutsen Formation. Diorite and quartz diorite dikes cut the volcanics and are related to a diorite stock of the Early to Middle Jurassic Island Plutonic Suite which occurs several kilometres to the northwest.

Strong regional faults trend north-northwest and northeast, and the Apex vein is associated with the latter, striking 070 degrees and dipping 80 degrees north.

The vein comprises quartz lenses and brecciated diorite (dike?) country rock fragments, with clay gouge on the vein walls. The fault zone containing the vein is about 2.5 to 3.0 metres wide, with the vein width averaging 45.7 centimetres. The vein contains pyrite, pyrrhotite, arsenopyrite and minor galena, chalcopyrite, sphalerite and limonite.

A sample across 45.7 centimetres assayed 4.80 grams per tonne gold and 3.43 grams per tonne silver (Annual Report 1916, page K319).

In 1976, Highland Mercury completed a program of geological mapping on the area as the AJ claims. In 1978, a ground electromagnetic survey was completed on the Apex and Morning claims. In 1979 and 1980 Dalmation Resources completed a program of geological mapping, trenching and five diamond drill holes on the Tay property. During 1987 through 1989, Acrtex Engineering Services completed programs of prospecting, geological mapping and rock and soil sampling. During 1997 through 1999, Dalmation Resources completed programs of geochemical sampling and geophysical surveys on the area as apart of the Tay property. In 2005, the area was explored as the Tay-Christina property of Perovic Enterprises Inc.