We arrived at the Kelso Depot Ranger Station around lunch time. This ranger station serves as the main headquarters of Mojave National Preserve. It looked much more established than the Hole in the Wall Ranger Station. In the early 1900s, Kelso Depot was a hotel and restaurant built to provide services for passengers of the railroads passing through the area. With the railroad industry declining after World War II, this area became desolate. The building was transferred to National Park Services in 1994 when the national preserve was established and the restoration of the building began in 2002.