The Bonus claims are located immediately north of the Endako River, 1.6 kilometres north west of the community of Endako. In the late 1960s, Mercury Explorations Limited completed geophysical and geochemical sampling of the area.

Bedrock exposures on the northern edge of the property consist of Tatin quartz monzonite, a phase of the Topley Batholith. For more information on geology see the Endako (093K 006) occurrence.

Pyrite and molybdenite were noted in pebbles and boulders found in overburden.

A strong induced polarization anomaly measuring 750 by 450 metres was identified on the claims. Soil geochemistry sampling was ineffective on claims with overburden in an excess of 45 metres in depth.