The Saint Joe 9 occurrence is located on a ridge separating Jim Smith and Kiakho creeks, approximately 1.2 kilometres east of the north end of Kiakho Lakes.

The area is underlain by metasediments of the Middle Proterozoic Purcell Supergroup, Creston Formation. The rocks are intruded by rocks of the mid-Cretaceous Bayonne plutonic suite. In addition to the numerous typically granodiorite intrusives representing the Bayonne plutonic suite, much more alkaline syenite and quartz syenite intrusives (stocks and dikes) occur in this area.

Locally, a zone of intense silicification, chloritization and brecciated is identified by diamond drilling. The zone follows the Cranbrook fault, which has thrown Creston Formation rocks into contact with Aldridge Formation sediments, both formations of the Helikian Purcell Supergroup. The controlling fault has a general east strike and steep northerly dip. The brecciated quartzites are intensely silicified and chloritized with quartz veins hosting massive pyrite and chalcopyrite.

In 2004, diamond drill hole SJ04-1 intercepted 1.0 metre averaging 4.5 grams per tonne silver, 0.032 per cent cobalt and 1.06 per cent copper (Sample 87288; Assessment Report 27764).

In 1966, Rimrock Minerals completed a 55.7 line-kilometre ground magnetic survey in the area (Assessment Report 895). In 1967, Vanco Explorations completed a 26.0 line-kilometre ground magnetic survey on the area as the Jack claims (Assessment Report 1007). In 1967, Placid Oil completed a program of geological mapping, a 160.0 line-kilometre induced polarization survey and a 33.6 line-kilometre ground magnetic survey in the area (Assessment Reports 1174, 1178). In 1993, Consolidated Ramrod Gold completed four diamond drill holes, totalling 636.0 metres, in the area (Assessment Report 23135). In 2004, Klondike Gold completed two diamond drill holes, totalling 341.7 metres, in the area (Assessment Report 27764).

In 1966, Rimrock Minerals completed a 55.7 line-kilometre ground magnetic survey on the area. In 1967, Vanco Explorations completed a 26.0 line-kilometre ground magnetic survey on the area as the Jack claims. Also in 1967, Placid Oil completed a program of geological mapping, a 160.0 line-kilometre induced polarization survey and a 33.6 line-kilometre ground magnetic survey. In 2004, Klondike Gold completed two diamond drill holes, totalling 341.7 metres, on the area.

In 2013/2014, PJX Resources Inc began a large program of gravity and magnetic geophysical surveying to detect dense subsurface features (Assessment Reports 34082, 34937, 35416). The gravity survey extended 10 kilometres beyond the West Basin property claim boundaries encompassing several MINFILE occurrences including the Saint Joe 9 (Figure 8, Assessment Report 34082).