Abandoned late 19th century gold and silver mine in the Organ Pipe National Monument desert across several arroyos and through lots of spiky plants, saguaro, organ pipe, cholla, ocotillo, we clocked at 5.6 miles round trip and that took us 3 hours. Stone buildings in ruins, several capped off shafts, rusty equipment and cables, lots of mine tailings, the mine is one of oldest prospecting sites in Arizona and listed on the National Register of Historic Places.