At the Pit showing, diamond drill holes (76-9 and 76-11) intersected black argillites and light to dark grey quartzites of the Helikian Aldridge Formation (Purcell Supergroup). Disseminated pyrite, pyrrhotite and chalcopyrite occur within near vertical quartz-siderite veinlets (Assessment Report 5942). The stratigraphy is similar to the Ross 1 showing (082GSW052) to the southeast.

In 1992 a helicopter borne DIGHEM survey over the Balsam, Cedar and Dogwood claims of R. H. Stanfield (Bul River Mineral Corporation Ltd.) was completed (Assessment Report 23012). In 2017, an NI43-101 technical report for Purcell Basin Minerals Inc. defined exploration targets peripheral to the copper ore body on the Bull River Mine property (Assessment Report 37195). This work was facilitated by the processing of Dighem airborne EM (AEM) data acquired from 1991-1997 surveys. Processing and interpretation of the historic Dighem data identified several target areas of coincident EM and magnetic features. Figures 7, 8 and 9 show magnetic and resistivity coverage from the Bull River mine area southeast to the Elko community area (Assessment Report 37195).

In 2018, Purcell Basin Mineral completed a 175.2-metre borehole (Grand 10-05) 500 metres northwest of the Pit showing (Assessment Report 37552).

Refer to Bull River (082GNW002) for details of the greater Bull River property which contained the Pit occurrence and 24 MINFILE documented occurrences as of September 2022.