Fortymile Gulch Glen Canyon National Recreation Area, Utah. Copyright © 2009 All rights reserved.
Narrow Section of Buckskin Gulch Paria Canyon-Vermilion Cliffs Wilderness, Utah. Copyright © 2011 All rights reserved
Arroyo Tapiado Mud Cave Slots Anza-Borrego State Park, California. Copyright © 2011 All rights reserved.
