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 Railroad bought the equipment, track and rolling stock to construct their own line located near Loving, New Mexico, which became the United States Potash Railroad. All the rails from the Death Valley Railroad were used on the new line until about 1941 when they were replaced by heavier-pound rails from the Atchison, Topeka & Santa Fe Railroad. The line was used until 1967 when better potash deposits were discovered in Saskatchewan and Pacific Coast Borax Company merged with U.S. Potash and became U.S. Borax & Chemical Cooperation. All three engines that were on the Death Valley Railroad are preserved. After the