A unit consisting of sharpstone conglomerate, siltstone, and limestone of the Triassic Brooklyn Formation is overlain by Tertiary andesites (Marron Formation, Penticton Gorup). These are cut by syenite and monzonite (Coryell Intrusions) and are sheared parallel to the northerly trending Granby River Fault, which lies to the east.

A seven metre long rusty zone in the sharpstone conglomerate is radioactive. Uranophane is likely the uranium mineral present. A grab sample assayed 0.049 per cent uranium (Assessment Report 6695).

About 250 metres to the southwest, a quartz vein in syenite contained 11.4 per cent WO3 (Assessment Report 3172).

In 1970 or just prior thereto, Boundary Exploration Limited conducted trenching on their SD claims. In 1971, Cronus Minerals Limited conducted an airborne magnetometer and scintillometer survey over their SD and PBE claims.

In 1977, Consolidated Boundary Exploration Ltd. conducted mapping and collected 4 samples on the U2 claims which covered the old PBE occurrences such as MINFILE 082ESE138, 139, 140, 218 and 219. In 1975, Chinook Construction and Engineering collected 74 rock-chip samples on their Wendy claims in the SD property area. They also conducted a ground radiometric survey. In 1978, Consolidated Boundary conducted a program of stripping, and rock and soil sampling (103 soils). They also conducted 4 kilometres of ground magnetometer and scintillometer surveying.

During 2008 through 2012, Grizzly Discoveries Inc. completed programs of geochemical sampling, geological mapping and ground geophysical surveys on the area as the Attwood area of the Greenwood property.