Who manages the birdwatching site found south of the dam originally known as the Boulder Dam?
Topock Marsh The Topock Marsh is one of the larger birdwatching sites found in the Lower Colorado River Valley, found from south of Hoover Dam to the Colorado River Delta in Mohave County, Arizona. This public land is managed by the US Fish and Wildlife Service, and available to the public for recreational purposes.
Sweitzer Lake State Park Sweitzer Lake State Park is a Colorado state park located in Delta County 1 mi south of Delta, Colorado. The 210 acre park established in 1960 includes a 137 acre reservoir. Facilities include a boat ramp, swim beach and picnic sites. Birdwatchers have spotted 170 different species in the park.