The WEDGE occurrence is located north of Cayoosh Creek, approximately 3 kilometres northwest of its junction with Phair Creek, and 10 kilometres west-southwest of Lillooet, B.C.

Regionally, the area is underlain by sedimentary rocks of the Lower Cretaceous Brew Group, part of the Jurassic to Cretaceous Cayoosh Assemblage, and marine sedimentary and volcanic rocks of the Mississippian to Jurassic Bridge River Complex. A shear zone, thought to be related to a regional thrust fault (Cayoosh Creek Thrust Fault), separates argillite and sandstone of the Jurassic to Cretaceous Cayoosh Assemblage from overlying Mississippian to Jurassic Bridge River Complex metasediments and schists. Mineralization along the Cayoosh Creek Fault can be traced for an approximately 3 kilometre length from the Ample-Goldmax prospect westward through the Ample Mine and Wedge showings to the Golden Cache Mine.

Locally, a phyllite, hosted in the footwall of a thrust fault below overlying greenstones, contains quartz stockwork zones mineralized with arsenopyrite and pyrite.

In 1997, sampling of shallow hand trenches yielded up to 3.95 grams per tonne gold (Property File - Canadian Resources House Ltd. [2004-06-10]: Technical Report - Ample-Goldmax Property).

The area has been explored since the late 1890s in conjunction with the nearby Ample mine and Golden Cache mine, and is part of the Ample-Goldmax gold camp. In 1997, Homestake Canada Inc. examined and sampled the area.

Refer to AMPLE (Minfile 092JNE069) and AMPLE-GOLDMAX (Minfile 092JNE209) for area exploration history.