Bill Williams River National Wildlife Refuge is located 20 miles south at the delta of the Bill Williams River at the confluence with the Colorado River. A 9-mile corridor along the river encompasses more than 6,000 acres of desert riparian and upland habitat.
Named after trapper Bill Williams, who explored the area in the 1880s, the refuge is dedicated to preserving some of the last remaining riparian habitat in the Lower Colorado River Valley. The refuge is home to beavers, bobcats, foxes, muskrats, mule deer, bighorn sheep, rabbits and raccoons as well as some 275 species of birds. Fishing and limited hunting are permitted (in season) and camping is prohibited.