The Boul showing is located 26 kilometres west of Vernon, between Whiteman and Bouleau Creeks.

In this area, Devonian to Triassic sedimentary and volcanic rocks of the Harper Ranch Group are intruded by Middle Jurassic granitic rocks of the informally named Terrace Creek batholith. Eocene Penticton Group volcanic rocks overlie the igneous and sedimentary rocks. Eocene Coryell rhyodacite porphyry to syenite plugs and dikes intrude these rocks.

Quartz veins within foliated Middle Jurassic granodiorite host gold and silver mineralization. Numerous quartz vein and veinlets, sometimes forming stockworks, carry native gold and/or electrum, and occur over a 1000 by 600 metre area. The precious metal veins have a very fine grained saccharoidal texture with local colloform chalcedonic banding. The veins are narrow (up to 0.4 metre thick) and discontinuous (up to 15 metres long). Assay values up to 27 grams per tonne gold and 180 grams per tonne silver are reported, although average values are much lower (Assessment Report 21877).

In 1988-90, Chevron Mineral Ltd. carried out a soil geochemistry program and in 1991 Inco Exploration and Technical Services Inc. conducted geological mapping and rock sampling.

During 2014 through 2016, the area was held and explored by Ximen Mining Corp. as the Brett Gold property and a complete summary of exploration work can be found at the Brett (MINFILE 082LSW110) occurrence.