The area of the Horse showing is underlain by upper Proterozoic coarse clastic sedimentary rocks of the Horsethief Creek Group.

While carrying out a field program in 1988 on behalf of Gold Ford Capital Corp., Ashworth Explorations Limited located a new showing on a north trending ridge between Law and Bruce creeks. The showing consists of a 2-metre wide milky quartz vein cross-cutting a quartz grit at 60 degrees to subvertical. The vein was traced along strike for 25 metres. Up to 1 per cent chalcopyrite was observed in seams. Malachite was also noted. Two chip samples yielded 0.46 per cent copper across 2 metres and 0.22 per cent across 1 metre (Assessment Report 18342, page 29).