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 train ran per day bringing food and water to the workers at the Ryan mine, and bought ore back late in the afternoon. After better deposits of borax were discovered at Boron, the Death Valley Railroad tried to resort to tourist operations by bringing in a Brill railcar to transport tourists to the old mines. Due to a lack of profit from tourists and freight trains and the closure of the mines, the railroad closed in 1931. Much of the railroad ran parallel to what is today State Route 190. After this railroad ceased operations, the United States Potash Company