February 2. Our adventures today took us through the Diablo Mountains on the Ajo Mountain Drive in the Organ Pipe Cactus National Monument. This is a scenic drive that takes you on a loop around the mountains, going up a canyon and around the rugged crags. If you have limited time in the park this is one of those must-do items. The drive is 21 miles on a one way dirt road. It’s a graded road and easily negotiable in a car although there are some very winding sections and the drive is restricted to vehicles under 25 feet in length. We used the guide book we picked up at the visitor center and we stopped at the designated locations to read about the natural history of the Sonora Desert. The guide suggests allowing two hours for the drive. We spent a good four hours, stopping to take photos and to hike. This is a spectacular drive, passing through stands of Saguaro and Organ pipe cactus and up into the rugged and mountainous terrain. The canyons with slightly higher elevation and it capture a bit more rain then the lower elevations which results in lush desert vegetation. At the top of the loop you can take a two mile round trip hike up Arch Canyon. We took turns, one of us hiking while the other kept our dog Carson company. Once again, dogs are not permitted on the trails. A number of wildflowers were in bloom including poppies. You can see additional photos of the drive here.