The historic "Burro Schmidt Tunnel" — through the granitic El Paso Mountains, located in the northern Mojave Desert, Southern California. *View of the "exit" adit (portal), that overlooks the Fremont Valley with Koehn Dry Lake, and the ghost town of Garlock. *It was a mining ore transport tunnel dug by hand by William "Burro" H. Schmidt between 1906 and 1938. *Managed by the BLM−Bureau of Land Management, it is on the National Register of Historic Places in Kern County, California