Supplement to the Biological Assessment Proposed Rosemont Copper Mine Santa Rita Mountains, Pima County, Arizona, Nogales Ranger District

Document ID: 018909
2013

The Coronado National Forest (CNF) submitted a Biological Assessment in June 2012 (June BA) and a Supplementary BA in October 2012 (October SBA) to US Fish and Wildlife Service (FWS) for Section 7 Endangered Species Act consultation on the proposed Rosemont Copper Mine. The FWS requested a second SBA to provide the rest of the information needed to complete their analysis for a Biological Opinion (BO). This February 2013 SBA was written in response to that request. The information needed was to include a concise and complete list of tangible conservation measures and an assessment of numerous technical reports that came in (mostly) after the October SBA was submitted. After consultation was initiated in June 2012, it was agreed by FWS, the Coronado National Forest (CNF), and Rosemont Copper Company (RCC) that conservation measures would be developed for threatened and endangered (T and E) species prior to the release of the draft BO. Another recommendation by FWS was to include a section including analysis (existing condition and effects) on Western Yellow-billed Cuckoo, a candidate species, should it be proposed for federal listing as T or E. Also, more information became available on the status of the Jaguar in the vicinity of the proposed copper mine. After the October SBA, Critical Habitat for the Southwestern Willow Flycatcher was designated (it was “proposed” in the October SBA). All of this information was assembled into this February SBA, as a presumptive final amendment to the June BA. Some additional information was included in this SBA by the CNF to assist FWS in its analyses and clarify the position of the CNF relative to information in the technical reports. This February SBA is not written as a standalong document; rather, information is additive to the June BA and October SBA.

U.S. Forest Service, and SWCA Environmental Consultants. 2013. Supplement to the Biological Assessment Proposed Rosemont Copper Mine Santa Rita Mountains, Pima County, Arizona, Nogales Ranger District. Submitted to U.S. Fish and Wildlife Service. Tucson, AZ: U.S. Forest Service, Coronado National Forest and SWCA Environmental Consultants. February.