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
Nevada State Route 373 Valley come into view. The route continues north from here to its terminus at US 95, near the former site of Lathrop Wells. An unimproved road through Amargosa Valley, connecting Nevada to Death Valley Junction, appears on state maps as early as 1927. This route crossed the state line roughly where the current highway crosses now, but instead veered northwest to State Route 5 (now US 95) southwest of Beatty near the now defunct town of Caracca. The road, which paralleled the tracks of the Tonopah and Tidewater Railroad to the west, was recognized as State Route 29 by 1932.