Area 51 the base extends further east. After leaving the restricted area, Groom Lake Road descends eastward to the floor of the Tikaboo Valley, passing the dirt-road entrances to several small ranches, before converging with State Route 375, the "Extraterrestrial Highway", south of Rachel. Area 51 shares a border with the Yucca Flat region of the Nevada Test Site, the location of 739 of the 928 nuclear tests conducted by the United States Department of Energy at NTS. The Yucca Mountain nuclear waste repository is southwest of Groom Lake. Groom Lake is a salt flat in Nevada used for runways of the
Sangamon River State Fish and Wildlife Area Sangamon River State Fish and Wildlife Area The Sangamon River State Fish and Wildlife Area, also and formerly known as the "Sangamon County Conservation Area" and the "Sangamon River State Habitat Area", is a 127-acre (51-hectare) forest preserve located in Fancy Creek Township near the village of Cantrall in the U.S. state of Illinois. It is located on the banks of the Sangamon River, and preserves open space for visitors and residents of metropolitan Springfield, Illinois. Topographically, the Sangamon River State Fish and Wildlife Area is a patch of central Illinois bluffland characterized by loamy hills and ravines on the