Devil's Highway between Ajo & Yuma. It requires some permits as you go through the firing range, but has some nice scenery. Plan to take 2 days and I recommended you go with at least one other vehicle.
Here's the details about the permits. It looks intimidating, but really it's not.
Devils Highway/Cabeza Prieta Permit: If you do not have this permit you can get it by visiting the visitors center of the Cabeza Prieta National Wildlife Preserve during regular business hours week days and you must arrive no later than 3:30 to watch the video in Ajo. You can also download the permit from the Jeep Expeditions servers (link below) and mail it in. A permit is needed for EVERYONE in your vehicle 18 years old and older.
If you want to get the "Video Stamp" which will also allow you access to Area B, you must watch the video either in Ajo, Yuma or Phoenix.
1611 North Second Avenue
Ajo, Arizona 85321
You may also get a permit in Yuma at the MCAS Yuma I am told and you can also get a permit and see the video in Phoenix at::
One North Central Avenue -or- the BLM field office located at 7th ave and Deer Valley:
Phoenix, AZ 85004
The process for getting the permit for Area B and adjoining areas such as Cabeza Prieta has changed in Phoenix. An appointment is no longer necessary, video permits can be renewed at:
US Land Management
Phelps Dodge Tower
One N. Central Avenue
Heading South on 1st Street towards Washington, enter parking about mid block on your left. Use the left gate and get a ticket. There are visitor parking spaces on the first underground level. Walk up the ramp and the "Explore Arizona" bookstore is the first door just South of the parking ramp. They will validate your ticket.
All new permits or renewals will require viewing of the video. Therefore your old permit is not required.
Permit can be downloaded here (Look for Devils Highway Permit) New Page 1
Permits are good from July 1 of each year until June 20 of the next year. DO NOT loose your permit if you have a video stamp on it as you can send a photo copy of it for next years permit showing the video stamp and they will video stamp your new one. Otherwise you gots to watch the video again !