The Brent Lake young uranium occurrence lies about 13 kilometres west of Penticton, British Columbia. This occurrence, consisting of the Brent Swamp and Brent Flat areas, lies near the northwest end of a 2-kilometre northwest trending area of erratic uranium and thorium occurrences. The Brent Lake young uranium occurrence was examined in 1979 by D.G. Leighton as a follow-up to uranium anomalies discovered during reconnaissance geological, geochemical and prospecting in 1977 and 1978 on the Clark claims.

Regionally, the area is principally underlain by medium grained intrusive rocks of the Middle Jurassic Okanagan batholithic complex and Middle Jurassic Bromley batholith. The Okanagan batholitic complex consists primarily of biotite granite and granodiorite, locally porphyritic. The Bromley batholith consists of hornblende biotite granodiorite, quartz diorite and granite. Both are massive, light grey weathering, medium to coarse grained and equigranular. To the south, these intrusive rocks cut Carboniferous to Permian Kobau Group metasedimentary rocks and to the west cut Triassic rocks of the Shoemaker Formation, Old Tom Formation, Independence Formation, Nicola Group and other volcanic rocks. On its northern margin, the intrusive mass is in contact with an overlying assemblage of Eocene volcanics and sediments of Penticton Group. The Kettle River Formation, consisting of granite boulder conglomerate, arkose, volcanic wacke and rhyolite breccia, is overlain by volcanics of the Springbrook and Marron formations.

Bedrock types at the Brent Lake uranium occurrence include granite boulder conglomerate, arkose, volcanic wacke and rhyolite breccia of the Kettle River Formation occurring as outliers within a stock of the Okanagan batholitic complex.

The Brent Swamp area of the Brent Lake occurrence covers about 31,200 square metres and has been classified as a fluviatile-type young uranium occurrence (IAEA TECDOC 332, Table 1). Deposition is controlled by groundwater flow and organic sequestration of uranium in a swamp. The occurrence is characterized by uranium concentrations generally at the bottom of organic profiles (IAEA TECDOC 332, Table 1). Four augerholes have defined a layer of radioactive sediments 3-metres thick at an average depth of 2.2 metres depth. The average uranium value obtained was 0.018 per cent with a maximum of 0.05 per cent uranium over a 0.5-metre interval (Geological Survey of Canada Open File 551).

The Brent Flats area of the Brent Lake occurrence covers about 17,000 square metres. Four augerholes in the flats have defined a layer of radioactive sediments 1-metre thick layer at an average depth of 0.8 metre. The average uranium value obtained was 0.020 per cent with a maximum of 0.038 per cent uranium over a 0.5-metre interval (Geological Survey of Canada Open File 551).

Radioactive paleochannels and uranium-rich coal seams have been identified in the area. Five small patches of strongly radioactive (to 9000 counts per second) coal occur within conglomerate and greywacke on the west side of Farleigh Creek (Assessment Report 7851). Selected grab samples assayed up to 1.5 per cent uranium (Assessment Report 7851). The coal is low-grade lignite. It is not developed in seams but only as isolated fragments within the matrix of the clastic beds. The uranium in the coal is likely the result of adsorption or local reduction by the organic material from uranium in groundwater.

About 300 metres to the northwest, a 10-metre zone of radioactive soil (300 counts per second) overlying green pebbly sandstone occurs along the same horizon as the radioactive coal.

In 2006, Aldershot Resources Ltd. asked Auracle Geospatial Science Inc. to undertake field uranium prospecting at Brent Lake. This work comprised of field sample collection and gamma ray spectrometry with 27 sites examined at approximate 100 metre intervals.