Rosemont Mine

In early March 2019, the federal government approved the final permit needed for operations to begin at the Rosemont Mine, after many years of Environmental Protection Agency (EPA) memos criticizing the mine project.

“The Rosemont Mine will degrade and destroy waters in the Cienega Creek watershed containing regionally rare, largely intact mosaics of some of the highest quality stream and wetland ecosystems in Arizona,” was the conclusion in one EPA memo. In another, the EPA said, “…contaminated mine runoff is additive, increasing concentrations of heavy metals to existing downstream waters and worsening water quality.”

The fight is not over just because the permit has been issued. On March 27, 2019, four conservation groups filed a federal lawsuit to overturn the Corps of Engineers permit, including Coalition member groups Save the Scenic Ritas, Sierra Club-Grand Canyon Chapter, and Center for Biological Diversity, and the Coalition intends to be involved as long as it takes to stop the Rosemont Mine.

For more detailed information on the fight against the Rosemont Mine, head to the Save the Scenic Santa Ritas website

Thank you for your support of the Sonoran Desert and this important fight against a mine that would irreparably and forever impact our scarce desert waterways and riparian habitat. 

Image above of Cienega Creek courtesy Tom Wiewandt. Cienega Creek and other important waterways and riparian habitat would be devastated by the Rosemont Mine. 



Gayle Hartmann: Rosemont mine would spell disaster for Southern Arizona” – Op-Ed in the AZ Daily Star (March 27, 2019)

Rosemont Mine opponents sue Army Corps over permit” – AZ Daily Star (March 27, 2019)

Lawsuit against Rosemont Mine cites EPA claims of wildlife harm, which company disputes” – AZ Daily Star (March 31, 2019)

Three tribes sue to block Rosemont Mine permit” – AZ Daily Star (April 11, 2019)

Nature Conservancy, Hudbay square off over mine’s impact on Sonoita Creek” – AZ Daily Star (April 15, 2019)

“Kimi Eisele: We must stand for the other species: No to Rosemont Mine” – Op-Ed in the AZ Daily Star (April 16, 2019)

Pima County Board of Supervisors backs resolution opposing Rosemont Mine” – AZ Daily Star (April 27, 2019)

Text of resolution passed by the Pima County Board of Supervisors on April 27, 2019 opposing the Rosemont Mine

Memorandum from County Administrator C.H. Huckelberry regarding the April 27, 2019 Board of Supervisors resolution opposing the Rosemont Mine