The Carbonate repository is located due west of the Carbonate mine and is situated on the north side of Highway 200.

Carbonate repository (2008, courtesy Tetra Tech Inc.)

Constructed by ASARCO in 1993-94, the repository received approximately 15,400 cubic yards (cy) of mine waste from the Carbonate mine area.

Carbonate upper tailings and old foundation (1987, DEQ)

Aerial view Carbonate tailings and upper mine area (circa 1987, DEQ)