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.
Seufert Park Seufert County Park is a public park located just east of The Dalles, Oregon, United States, and is operated by the United States Army Corps of Engineers. The park's main attraction is The Dalles Dam Visitor Center where one can view exhibits regarding the history and function the dam. The park is named after the Seufert family which operated a salmon cannery near the park from the late 19th century until the construction of the dam. The park also has picnic tables and a small rose garden.