Superfund Site: BASIN MINING AREA
Superfund Site Profile
Water monitoring of the Bullion Mine site started in the summer of 2015 to help identify future cleanup needs.
The Basin Mining Area site is located in and around the unincorporated town of Basin in Jefferson County, Montana. The site encompasses approximately 77 square miles and includes the town of Basin and approximately 300 individual abandoned mine sites in the surrounding watersheds of Basin Creek, Cataract Creek and part of the upper Boulder River. Hard rock mining in the Basin Watershed began in the 1870s and continued intermittently into the late 1960s. Releases of hazardous substances such as arsenic, cadmium, lead, zinc, silver and copper pose a risk to human health and the environment.