How to Read an MVUM to Find Dispersed Camping in Colorado

The Motor Vehicle Use Map (MVUM) is the U.S. Forest Service’s authoritative record of which roads and trails in a National Forest are legally open to motorized vehicles, and it is the single most important document for anyone planning dispersed camping in Colorado. An MVUM answers three questions at a glance: whether a route is open to your class of vehicle, what seasonal dates apply, and what kind of access the road allows. Reading one correctly keeps you on legal ground, because a route that does not appear on the current MVUM is closed to motorized use no matter how established it looks on satellite imagery or in a trip report, and camping off-route is permitted only when you reach the site by a designated road. This guide explains every symbol and notation you will encounter on a Colorado MVUM: the solid and dashed lines that separate roads from trails, the vehicle-class columns, the seasonal-date annotations, and the width and surface notes that hint at road condition. It also shows how to read those markings against your vehicle’s clearance and drivetrain before you commit to a forest road, so the map becomes a planning tool rather than a legal formality.

What Is an MVUM and Why Does It Matter?

MVUMs are published under 36 CFR 212 Subpart B, which requires every National Forest to designate the roads, trails, and areas open to motor vehicle use. A route that appears on the MVUM is legally open. A route that does not appear, regardless of how well-traveled it looks on satellite imagery, is closed to motorized use. Camping off-route in a National Forest is allowed, but you must reach your site via a designated route.

Colorado’s 11 National Forests publish individual MVUMs, updated when travel-management plans are revised (typically every three to five years). Always download the current PDF from the forest’s official page rather than relying on a cached copy.

“Designated roads, trails, and areas are those that are specifically identified as open to motor vehicle use … Any motorized travel off the designated system of roads, trails, and areas is prohibited.”

U.S. Forest Service. Travel Management Rule Overview

How Do You Download the Right MVUM for Your Forest?

Each Colorado National Forest hosts its MVUM as a PDF on its Forest website. Go to fs.usda.gov/visit/maps, select the forest (for example, Pike–San Isabel NF or White River NF), and look for the Motor Vehicle Use Map download link. Most Colorado forests also post district-level maps that cover a smaller area at a larger scale. Useful for detailed route planning.

You can also use the USFS MVUM web viewer (mvum.fs.usda.gov) to view designated routes overlaid on a satellite basemap. This is helpful for identifying camp spots but always cross-reference with the official PDF before driving a remote road.

What Do the Road and Trail Symbols on an MVUM Mean?

MVUMs use a standardized symbol set across all forests. The legend printed on every map explains each symbol; here are the ones that matter most for dispersed camping:

How Do You Read the Route Table and Surface Type?

Each MVUM includes a route table that lists every designated road and trail by number, surface type, allowed vehicle class, and seasonal open dates. The surface type codes vary slightly by forest, but the common ones are:

• P (Paved): year-round unless otherwise noted. Passenger-car accessible.
• A (Aggregate/gravel): usually passenger-car accessible in dry conditions. Check clearance after rain or snow.
• N (Native/unimproved): dirt surface. High clearance recommended. Can become impassable when wet.
• H (High clearance): explicitly marked as requiring high clearance. 4WD may be needed in wet conditions.

Cross-referencing the route number on the map with its row in the route table tells you the full picture: surface, allowed vehicles, and the exact months it is open. This is where you catch the cases where a road looks driveable on the map but is only open July 1 – November 15.

How Do You Find Legal Dispersed Camping Along an MVUM Route?

Federal regulations (36 CFR 261.58) prohibit camping within 300 feet of a stream, lake, or other water body in most Colorado National Forests unless a signed designated campsite is present. Beyond that setback, any pull-off along a designated road is a potential dispersed site, unless a specific area closure order applies. Key steps:

1. Identify an MVUM-designated road in your target area that is open in your travel window and accessible to your vehicle type.
2. Look for the 14-day stay-limit notice on the forest’s website or at the trailhead (all Colorado National Forests impose a 14-day limit on dispersed camping).
3. On-site: confirm you are at least 300 feet from water and not in a posted closure area.
4. Check current fire restrictions at fs.usda.gov/alerts/r2 before starting any campfire.

Which Colorado National Forests Have the Most Accessible Dispersed Camping?

Colorado’s Grand Mesa, Uncompahgre, and Gunnison National Forests (GMUG) have an extensive network of passenger-car-accessible dispersed sites off their graded forest roads. The White River NF (Vail/Aspen/Glenwood area) has significant dispersed camping but much of it requires high-clearance vehicles. The San Juan NF (Durango area) mixes accessible and 4×4-only terrain. The MVUM route table is essential here because the terrain variation is extreme.

The Camprtron dataset covers reviewed sites across Colorado’s NF and BLM land, with access type rated per site based on MVUM surface codes and PostGIS spatial analysis. You can use the app to filter by vehicle capability before consulting the MVUM for the specific route.