The Ryan House and Lost Horse Well are historic ruins in Joshua Tree National Park, California, United States.

Adobe walls sit on stone masonry foundation, and there are concrete stoops on the north and south sides.

He located a steam-powered mill, large at the time, near the Colorado River, then had it disassembled to move it to the Lang mine site.

Fuel to run the pumps piping the water up the needed 750 feet (230 m) elevation gain was provided from burning trees from nearby desert mountains.

This article about a property in Riverside County, California on the National Register of Historic Places is a stub.