Environmental Assessment for the Proposed SBInet Tucson West Project: Ajo, Tucson, Casa Grande, Nogales, and Sonoita Stations, Areas of Operation, U.S. Border Patrol, Tucson Sector, Arizona

Note: this is an extremely large file and may take a long time to download. Your computer must also have the memory to handle a 115 MB file. When last viewed, the website for this environmental assessment included the report separated into smaller PDF format files and a list of public libraries where the hard copy could be viewed. Includes maps, tables, and bibliographic references. "The Secure Border Initiative (SBI) is a comprehensive, multi-year plan established by the Department of Homeland Security (DHS) in November 2005 to secure America’s borders and reduce illegal immigration.