The Eagle occurrence is located on a ridge east of Ruddock Creek, at an elevation of approximately 1900 metres.

The area is underlain by marine sedimentary rocks of the Lower Cretaceous Jackass Mountain Group, which have been intruded by sills and dikes of Tertiary to Cretaceous feldspar porphyry and quartz porphyry. The Jackass Mountain Group consists of conglomerate, siltstone and sandstone, generally trending to the north or northeast and dipping to the west.

Locally, former trenches and an adit of unknown age, expose stibnite mineralization along the margins of a quartz-feldspar porphyry dike. Wallrock alteration varies from weakly to strongly sericitic (or argillic), while silicification along fault and fracture zones accompanies the sulphide mineralization.

In 1981, rock sampling yielded values up to 1.0 per cent mercury and greater than 1.0 per cent antimony (Assessment Report 9636). In 1987, a sample (62136) of a mineralized stibnite vein assayed greater than 1.0 per cent antimony (Assessment Report 16303). In 2006 and 2007, samples (250487 and 345720) from a stibnite-arsenopyrite vein assayed greater than 1.0 per cent antimony (Assessment Report 28631 and 29376).

Another area of similar mineralization, is reported approximately 600 metres to the north west, and consists of two former hand pits exposing stibnite- bearing quartz veins and stringers in a gossanous quartz-feldspar porphyry. In 1988, a sample (248003) assayed greater than 1.0 per cent antimony, while another nearby sample (248001H) of quartz vein material assayed 0.2 gram per tonne gold (Assessment Report 17811). In 2008, a sample (20325) of a siliceous quartz-feldspar porphyry from this area assayed 10.7 grams per tonne silver (Assessment Report 30702).

In 1981, JMT Services completed a program of rock, silt and soil sampling on the area immediately north as the Eagle claim. The following year E & B Explorations completed a program of rock and soil sampling. In 1987 and 1988, Chevron Minerals completed programs of rock and soil sampling, geological mapping and an 11.1 line-kilometre ground VLF-EM survey on the area as the Brent claim. In 1996, Navarre Resources completed a program of rock, silt and soil sampling on the area as the RC claim group. During 2006 through 2011, the area was prospected and sampled as the Dave claims of the Rod-Stir project. In 2012 and 2013, programs of geochemical sampling, geological mapping and a minor 1.5 line-kilometre ground magnetic survey were completed on the area as the Lind claims.