Ranger Robb:
Saguaros & Organ Pipe cacti
Ranger Robb:
Robb & Organ Pipe Cacuts
Ranger Robb:
Organ Pipe Cactus
Ranger Robb:
Cacti of the Ajo Mountains
Ranger Robb:
Mexican Gold Poppy
Ranger Robb:
Desert Rosemallow, Hibiscus Coulteri
Ranger Robb:
Camper & Truck, Ajo, AZ
Ranger Robb:
Dead Tree sunset, Ajo, AZ
Ranger Robb:
Mountain North of AJO, Barry M. Goldwater Airforce Range, AZ
Ranger Robb:
Mountain North of AJO, Barry M. Goldwater Airforce Range, AZ_1
Ranger Robb:
Mountain, Ajo, AZ
Ranger Robb:
Sunset, Ajo, AZ
Ranger Robb:
Arch, Organpipe Cactus National Monument, Arizona
Ranger Robb:
Chainfruit Cholla, Organpipe Cactus National Monument, Arizona
Ranger Robb:
Chainfruit Cholla, Organpipe Cactus National Monument, Arizona_1
Ranger Robb:
Columnar Cacti, Organpipe Cactus National Monument, Arizona
Ranger Robb:
Montezuma Peak, Organpipe Cactus National Monument, Arizona
Ranger Robb:
Montezuma Peak, Organpipe Cactus National Monument, AZMontezuma
Ranger Robb:
Organpipe Cactus, Organpipe Cactus National Monument, Arizona
Ranger Robb:
Saguaro, Organpipe Cactus National Monument, Arizona
Ranger Robb:
Saguaro, Organpipe Cactus National Monument, Arizona_1
Ranger Robb:
Saguaros & Organpipe Cactus, Organpipe Cactus National Monument, Arizona
Ranger Robb:
Saguaros & Organpipe Cactus, Organpipe Cactus National Monument, Arizona_1
Ranger Robb:
Saguaros & Organpipe Cactus, Organpipe Cactus National Monument, Arizona_2
Ranger Robb:
Sunset peak & clouds, Organpipe Cactus National Monument, Arizona
Ranger Robb:
Saguaros, Organpipe Cactus National Monument, Arizona_3
Ranger Robb:
Saguaros, Organpipe Cactus National Monument, Arizona
Ranger Robb:
Mojave Rattlesnake, Organpipe Cactus NM, AZ
Ranger Robb:
Cactus Wren. Organ Pipe Cactus National Monument, Arizona
Ranger Robb:
Curved-billed Thrasher, Organ Pipe Cactus National Monument, Arizona
