The Esperon 1 prospect is located 29 kilometres north-northwest of Kelowna, south of Dun Waters Creek.

In this area, Middle Jurassic quartz monzonite of the informally named Terrace Creek batholith intrudes argillaceous sediments of the Upper Triassic to Lower Jurassic Nicola Group. The stock is cut by diorite plugs and dikes which are cut by quartz monzonite and aplite dikes. The intrusive rocks are cut by Tertiary basalt dikes related to overlying Eocene Penticton Group volcanic rocks.

Chloritized and sericitized porphyritic quartz monzonite hosts molybdenum mineralization. Quartz veinlets carry disseminated molybdenite and pyrite. A 25-metre chip sample assayed 0.021 per cent molybdenum (Assessment Report 8664).

About 600 metres to the east, straddling Dun Waters Creek, quartz veins carrying disseminated molybdenite cut chloritized and sericitized porphyritic quartz monzonite, adjacent to diorite, and a quartz monzonite dike intruding argillites.

In 1979-80, Cominco Ltd. carried out geological mapping, induced polarization and magnetometer surveys.