Death Valley Earth at 134 °F (56.7 °C) on July 10, 1913, as well as the highest recorded natural ground surface temperature on Earth at 201 °F (93.9 °C) on July 15, 1972. Located near the border of California and Nevada, in the Great Basin, east of the Sierra Nevada mountains, Death Valley constitutes much of Death Valley National Park and is the principal feature of the Mojave and Colorado Deserts Biosphere Reserve. It is located mostly in Inyo County, California. It runs from north to south between the Amargosa Range on the east and the Panamint Range on the west; the
Death Valley a mile-long shallow depression in the center of the valley, supports pupfish. These isolated pupfish populations are remnants of the wetter Pleistocene climate. Darwin Falls, on the western edge of Death Valley Monument, falls into a large pond surrounded by willows and cottonwood trees. Over 80 species of birds have been spotted around the pond. Death Valley is home to the Timbisha tribe of Native Americans, formerly known as the Panamint Shoshone, who have inhabited the valley for at least the past millennium. The Timbisha name for the valley, "tümpisa", means "rock paint" and refers to the red ochre paint