Off-road trails & 4x4 roads
DryRig maps 313,467 road and trail segments — 295,630 miles — that the US Forest Service and the Bureau of Land Management have designated for motor vehicles, across 41 states. Tap any route to see which vehicles are allowed, what it takes to drive, and how much it climbs.
What you see for every route
Who can drive it, legally
Each route lists which vehicles the agency designates it for — passenger cars, high-clearance vehicles, motorhomes, off-highway vehicles over 50″, ATVs and UTVs, and motorcycles — with the dates each is allowed.
What it takes to drive
A vehicle-needed rating from the agencies' own data: Forest Service maintenance levels and BLM's observed route class (2WD, 4WD, high-clearance 4WD). Routes the agency hasn't rated say so.
Elevation and grade
Low and high point, total climb and descent, and the steepest sustained grade, computed from the USGS 3D Elevation Program. Pro adds the full elevation profile.
Who to call
The ranger district or BLM field office that manages the route, with the address and phone the agency publishes — the people who know about washouts and closures.
Conditions and camping nearby
Active wildfire, weather, and air quality at the route, plus campgrounds and OHV staging areas within a kilometer.
Reports from people who drove it
Campers share what it actually took — the vehicle they drove, whether they made it through, and conditions — moderated before anything inappropriate stays up.
Most off-road miles by state
How the data is sourced
Routes and vehicle rules come from the Forest Service Motor Vehicle Use Maps — the legal designation under 36 CFR 212.56 — and the BLM Ground Transportation Linear Features dataset. Trail class and grade come from the Forest Service trails dataset, elevation from the USGS 3D Elevation Program, and office contacts from each agency's published office list. Every route links to the agency's own record.
These are legal designations, not road conditions. Washouts, locked gates, snow, and emergency closures aren't in the data — check with the managing office before you go.