San Pedro Riparian National Conservation Area

The San Pedro Riparian National Conservation Area contains nearly 57,000 acres of public land in Cochise County, Arizona, between the international border with Mexico and St. David, Arizona. The riparian area, where some 40 miles of the upper San Pedro River meanders, was, through the efforts of congressman Jim Kolbe, designated by Congress as a Riparian National Conservation Area on November 18, 1988, and assigned to the protection of the U.S.

Source: Wikipedia