The Death Valley expedition 1891, with Descriptions of New Species"". The Death Valley expedition The Death Valley expedition was an 1891 expedition to discover the geographic distributions of plants (phytogeography) and animals in California's Death Valley. It was the first of a series of expeditions funded by an 1890 act of the United States Congress. The expedition included biologists, naturalists, botanists, and zoologists. They produced valuable reports of historic significance in several fields, including ""Botany of the Death Valley Expedition"", "“The Death Valley Expedition: A Biological Survey of Parts of California, Nevada, Arizona, and Utah”", and ""Annotated List of the Reptiles and Batrachians Collected
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