Pyrite, chalcopyrite and pyrrhotite are present as disseminations or fillings in fractures in a Purcell gabbro sill, part of the Moyie intrusions in Aldridge Formation sedimentary rocks which include quartzitic/quartzose wacke and argillaceous siltstone; both these units belong to the Middle Proterozoic Purcell Supergroup. As is typical of these occurrences in the sills, some small quartz-calcite veinlets are also present. A magnetometer survey of the claims in 1958 (Assessment Report 272) failed to find any anomalies.

During 2004 through 2012, Eagle Plains Resources Ltd. completed programs of geological mapping, geochemical (soil and rock) sampling and airborne geophysical surveys on the area as apart of the Iron Range property. A completed property exploration history can be found at the O-Ray (MINFILE 082FSE017) occurrence.