The Bald Eagle is situated near the head of Springs Creek on the ridge between Springs and Bruce creeks, at 2560 metres elevation above sea level, in the Golden Mining Division.

Regionally, the area is underlain by Proterozoic clastic sedimentary rocks of the Purcell and Windermere supergroups and by lower Paleozoic strata of the Beaverfoot and Mount Forster formations (Geoscience Map 1995-1).

The Purcell Supergroup strata include the Aldridge, Creston, Kitchener, Dutch Creek and Mount Nelson formations. The Windermere Supergroup unconformably overlies the Purcell Supergroup rocks and includes the Toby Formation and Horsethief Creek Group (Paper 1990-1).

In the vicinity of the occurrence, rocks of the Kitchener and Dutch Creek formations have been further subdivided and assigned to the Van Creek and Gateway formations. The Van Creek Formation correlates with the Lower Kitchener Formation while the Gateway Formation is equivalent to the lower portion of the Dutch Creek Formation. The Mount Nelson Formation has been subdivided into seven discrete members, a lower quartzite, a lower dolomite, a middle dolomite, a purple dolomite, an upper middle dolomite, an upper quartzite, and an upper dolomite (Open File 1990-26).

Rocks of the Horsethief Creek Group, Beaverfoot and Mount Forster formations are folded and overthrusted by rocks of the upper portion of the Dutch Creek Formation and the lower members of the Mount Nelson Formation. The sedimentary rocks have undergone regional metamorphism to at least greenschist facies.

The Bald Eagle deposit is within the upper dolomite member of the Mount Nelson Formation, immediately below the Windermere unconformity (Open File 1990-26). The host dolomite is light grey and fine grained with abundant black chert layers which preferentially replace cryptalgal structures and thin carbonaceous black shale interbeds. The strata are folded in northwest-trending anticlines and synclines which vary from isoclinal to more open, broader folds. The occurrence consists of two shallow adits excavated in dolomite near the contact with the overlying sandstone of the Toby Formation. The ore consists of massive galena and sphalerite mineralization occurring with pyrite as replacement of the dolomite. A 60 centimetre chip sample across massive mineralization assayed 391 grams per tonne silver, 33.5 per cent lead, 20 per cent zinc and 0.6 gram per tonne gold (Minister of Mines Annual Report 1920).