Written response on air quality and geochemistry
Rosemont Copper Company. 2012f. Response to December 20, 2011 Forest Service Letter. Letter on file, U.S. Forest Service, from Katherine Ann Arnold, Vice President, Environmental and Regulatory Affairs, Rosemont Copper Company, to Jim Upchurch, Forest Supervisor, Coronado National Forest. Document No. 013/12-15.3.1. Tucson, AZ: Rosemont Copper Company. February 10.