El Paso Mountains: Bonanza Gulch.

This is the Lundquist cabin.  Like most of the old cabins in the Mojave Desert, it was built in connection with a nearby mining claim.

In this case, the builders were a man and woman from Sweden, who utilized local rocks and a concrete floor in the cabin's construction.  It is believed that this cabin was built during the 1940's or during the 1950's.

Today, the Lundquist cabin is more widely (I suppose that this depends upon one's definition of "widely") known as the "Jonie-Jack" cabin, in honor of the the folks who owned it during the 1960's.

Today, off-road enthusiasts can visit this cabin and spend the night in it, if they desire.