This is the larger of the two arches we found in Marinus Canyon. The arch is fairly big (though perhaps not quite as big as expected) and is larger than it appears in the photo. If you look close you can see a pool of water far below. It's about 200 feet (60 meters) down to the pool. The keeper pothole is just barely out of site since I didn't want to lean too far off the cliff with my camera. See the Trip Report for details.