USFS Motor Vehicle Use Map

What it shows

Each National Forest publishes a Motor Vehicle Use Map (MVUM). It shows the roads and trails where you're allowed to drive, which vehicles may use them, and in which seasons. Driving a road that isn't on it is illegal. This overlay puts the MVUM data for every National Forest and Grassland on one map, on top of your basemap.

Tap a road for its number, surface, maintenance level and seasonal status, and whether it's open to passenger cars, high-clearance vehicles, ATVs and motorcycles, with the dates for each. Trails show their number, class and the vehicles allowed.

Use it to plan the drive to a trailhead or a dispersed campsite, or to check whether an OHV route is open.

Legend

Roads are solid lines and trails are dashed. The color says which vehicles are allowed, and from zoom 12 small badges along the line show the same thing.

Roads

Color	Open to
Dark green	All vehicles, all year
Bright green	All vehicles, seasonally
Orange	Passenger vehicles only
Dark blue	High-clearance vehicles only
Dusty red	Passenger and high-clearance vehicles
Cyan	ATVs only
Yellow	ATVs and motorcycles
Other colors	Other combinations of vehicles: tap the road to see which

Trails

Color	Open to
Green	All vehicles
Purple	Vehicles 50 inches wide or less
Orange-brown	Motorcycles
Gray	Special designations: tap the trail to see which

The map legends help article has the full key.

On the map

The overlay appears from zoom 6. Road and trail names appear from zoom 12.

Where the data comes from

The U.S. Forest Service's national MVUM data (Road_MVUM and Trail_MVUM), published on the FSGeodata Clearinghouse. The Forest Service updates it forest by forest as the maps change.

The legal document is the printed or PDF MVUM from each National Forest, not this data. Designations change, and the copy in Goat Maps can be a season behind. Before you drive anything you're unsure of, check the forest's current MVUM. It's on the forest's website, and ranger stations hand it out free.

Coverage

National Forests and National Grasslands across the United States, including Alaska and Puerto Rico.

Offline

The Motor Vehicle Use Map is free on the web and on iPhone. With a membership, you can download the whole overlay in the iPhone app to use offline.