The Whiteman Jasper showing is located 15 kilometres west- southwest of Vernon, on the south side of Whiteman Creek.
In this area, Devonian to Triassic sedimentary and volcanic rocks of the Harper Ranch Group are unconformably overlain by Upper Triassic to Lower Jurassic Nicola Group sedimentary and volcanic rocks. These units are intruded by Middle Jurassic granitic rocks. Eocene Coryell granitic rocks intrude and are in fault contact with Middle Jurassic intrusions. Eocene Penticton Group volcanic rocks overlie the igneous and sedimentary rocks.
Unconsolidated Quaternary sediments along the creek host placer(?) jasper. The jasper is fine-grained and red.