The Denise prospect is located 1 to 1.5 kilometres south of the west end of Lorne Lake and 10 kilometres southeast of Princeton.

The area around Lorne Lake is mostly underlain by granodiorite of the Early Jurassic Bromley batholith. Various volcanics and sediments of the Upper Triassic Nicola Group and the Middle to Upper Cretaceous Spences Bridge Group lie south and west of the lake. These units are unconformably overlain by volcanics and volcaniclastics of the Eocene Princeton Group.

Skarn outcrops over an area 640 metre long and up to 550 metres wide, between Bromley granodiorite to the east and Nicola Group volcanics to the west. The volcanics consist primarily of plagioclase and pyroxene porphyritic andesite, with minor "cherty" andesite and rhyolite. The skarn zone is comprised of epidote, garnet, magnetite, chlorite and calcite.

Mineralization consists of chalcopyrite and pyrite, in veinlets, blebs and disseminations. This sulphide mineralization also occurs in the surrounding country rock with less intensity.

The prospect was explored by Geo-Dyne Resources Ltd. between 1971 and 1973.