A 400' aerial view from the north end of Hole in the Ground, a relatively unknown shallow 200' deep volcanic caldera south of Duck Flat, Nevada.  Hole in the Ground Spring emerges just above the crater as it flows through the center of the crater to the south end.  The area had past homesteads & ranches, some of the old rock walls are visible particularly on the west rim of the crater w/ an old corral area directly below.