Before you ride or drive, always contact the appropriate land manager to check on route closures, fire danger, local conditions, special permits or permission, OHV policy, maps of route and area information. If you're not sure what to ask when calling see What to Ask About a Site 
.
Many dirt roads that you ride or drive on cross private property. Respect private property. Ask for permission before you ride on private land. Do not trespass. There can be civil and criminal penalties for violating trespass laws.
The Bureau of Land Management (BLM) administers over 12 million surface acres of public lands in Arizona for a variety of uses, including recreation, and to protect the natural resources of the land. There are field offices throughout the state that provide on-the-ground field management. View a map of BLM Field Office Locations. 
BLM Arizona State Office: (602) 417-9200
Arizona Strip Field Office: (435) 688-3200
Lake Havasu Field Office: (928) 505-1200
Kingman Field Office: (928) 718-3700
Yuma Field Office: (928) 317-3200
Safford Field Office: (928) 348-4400
Tucson Field Office: (520) 258-7200
Hassayampa Field Office: (623) 580-5500
Lower Sonoran Field Office: (623) 580-5500
Each of the state’s National Forests has primitive, minimally maintained routes available for OHV use. Always call to check on fire danger, local conditions, and OHV policy. Avoid wet roads. Learn more about USDA Forest Service.
Apache-Sitgreaves National Forest: (928) 333-4301
Alpine Ranger District: (928) 339-5000 
Black Mesa Ranger District: (928) 535-7300
Clifton Ranger District: (928) 687-8600
Lakeside Ranger District: (928) 368-2100
Springerville Ranger District: (928) 333-6200
Coconino National Forest: (928) 527-3600
Happy Jack Information Center: (928) 477-2255
Mogollon Rim Ranger District: (928) 477-2255
Mormon Lake Ranger District: (928) 774-1147
Peaks Ranger District: (928) 526-0866
Red Rock Ranger District: (928) 282-4119
South Gateway Visitor Center: (928) 284-5323
Coronado National Forest: (520) 388-8300
Douglas Ranger District: (520) 364-3468
Nogales Ranger District : (520) 281-2296
Safford Ranger District: (520) 428-4150
Santa Catalina Ranger District: (520) 749-8700
Sierra Vista Ranger District: (520) 378-0311
Kaibab National Forest: (928) 635-8200
North Kaibab Ranger District: (928) 643-7395
Tusayan Ranger District: (928) 638-2443
Williams Ranger District: (928) 635-5600
Prescott National Forest: (928) 443-8000
Bradshaw Ranger District: (928) 443-8000
Chino Valley Ranger District: (928) 777-2200
Verde Ranger District: (928) 567-4121
Tonto National Forest: (602) 225-5200
Cave Creek Ranger District: (480) 595-3300
Globe Ranger District: (928) 402-6200
Mesa Ranger District: (480) 610-3300
Payson Ranger District: (928) 474-7900
Pleasant Valley Ranger District: (928) 462-4300
Tonto Basin Ranger District: (928) 467-3200
= Districts with snowmobile opportunities
Arizona State Land Department: (602) 542-4631
Mohave County: (928) 753-9141
PDF Documents Require Adobe Reader