Reading a Grassland Vehicle Use Map
Planning an ATV or UTV ride on North Dakota grassland can get confusing when a route looks open on a screen but its status is unclear on the ground. A Grassland Motor Vehicle Use Map, or MVUM, helps show which roads and routes are designated for motorized travel. This guide explains how to read one and plan a ride without guessing.
What a Grassland Vehicle Use Map Shows
The MVUM identifies designated routes
A Motor Vehicle Use Map shows routes where motor vehicle travel is designated as allowed on the mapped National Forest System lands. In North Dakota, that means it can help riders understand where motorized travel is permitted across parts of the Dakota Prairie Grasslands, including the Little Missouri, Sheyenne, Cedar River, and Grand River units.
The most important detail is that an MVUM is not simply a map of every visible road, two-track, or worn path. A track you spot on satellite imagery may be an old route, an administrative route, or a path that is not open to public motor vehicle use. The map’s designations matter more than the fact that a route appears physically rideable.
The map also does not grant permission to ride everywhere on public land. Grassland travel is generally route-based: use the roads or trails designated for motor vehicles, and do not assume you can cut across open prairie to reach a destination. For more on that distinction, see [North Dakota Cross-Country Travel Is Banned] and [Why Wheeled Cross-Country Travel Is Banned].
It is a rules map, not a complete trip-planning map
An MVUM is best understood as a travel authorization tool. Depending on the map and its legend, it may identify route numbers, vehicle designations, seasonal or date-based restrictions, and other limits. It usually is not designed to show every practical detail a rider needs, such as trail difficulty, fuel stops, current mud conditions, or reliable cell coverage.
That difference can surprise people who are used to a general recreation map. A route may be legally designated but still be rough, muddy, narrow, or unsuitable for a particular machine. Conversely, a broad-looking line on a navigation app is not proof that motorized travel is allowed there.
Use the MVUM to answer, “Am I allowed to ride this route?” Then use other reliable information to answer, “Is this route a good choice for my machine and group today?” The distinction is especially useful when comparing grassland roads with developed riding areas. [Roads, Not Trails, on the Dakota Prairie Grasslands] explains why a grassland ride may feel different from a purpose-built OHV trail.
How to Read the Map Before You Ride
Start with the map title, area, and legend
Before studying individual lines, make sure you have the map for the correct grassland unit and area. North Dakota’s grassland units are separated geographically, and a map for one area will not tell you the rules for a different one. Check the title, map boundary, edition information, and any notes about the area covered.
Next, read the legend from beginning to end. Look for how the map distinguishes roads from trails, what vehicle symbols mean, and whether the symbols include width or vehicle-class restrictions. Do not rely on the color of a line alone. Map symbols can be easy to confuse when printed in grayscale, viewed on a small screen, or partially hidden by labels.
Pay particular attention to notes that describe dates or seasons. A route may be open only during a specified period, and a seasonal designation is not the same as a guarantee that the route is passable. The dates tell you about the permitted-use window; they do not promise a dry surface, a clear entrance, or favorable weather.
Trace the whole route, not just the destination
A common planning mistake is to confirm that the destination is near a designated road without checking the entire approach. Trace your planned route from the staging point to the turnaround point. Check every connecting segment, junction, and spur. One closed or restricted segment can make an otherwise appealing route unusable.
If you plan to make a loop, verify both directions and every leg. A line that looks connected on a phone may end at a boundary, a gate, a non-motorized route, or a road that has a different designation. Zoom in around junctions and compare road numbers or names where available rather than assuming nearby lines connect.
A simple route check can help keep the group together:
- Mark the intended start and finish points.
- Follow each route segment on the MVUM.
- Confirm the map’s designation and any restriction for every segment.
- Identify a legal turnaround or alternate route before leaving.
- Save a copy of the map for offline use or carry a paper version.
When you use a digital map, tools such as onX Offroad can help you view and organize route information, but do not treat an app track as a substitute for checking the applicable MVUM and its legend. Digital layers and downloaded maps can make route planning easier; the official designation is what you need to verify.
Use the table as a quick interpretation check
The following table is a practical reminder of what a map detail can—and cannot—tell you. The legend on the specific MVUM remains the authority for interpreting its symbols.
| Map detail | What to check | What not to assume |
|---|---|---|
| Route line | Whether it is designated for motor vehicle use | That every visible track nearby is also open |
| Vehicle symbol or note | Which vehicle types or limits apply | That an ATV and a wide UTV are treated identically |
| Seasonal dates | When the designated use is allowed | That the road will be dry or passable during that period |
| Route number | Whether it matches the junction or sign on the ground | That a number alone confirms the route is open |
| Map boundary | Whether the route stays within the area covered | That rules remain the same after crossing into another jurisdiction |
| Blank area or unmarked track | Whether another official designation applies | That an unmarked route is open because it appears on a phone map |
Planning an ATV or UTV Ride on Grassland Roads
Match the route to your machine and group
An ATV and a side-by-side can face different practical challenges on the same route. Check any vehicle-class or width information shown in the map legend, and consider the width of your UTV, mirrors, accessories, and any trailer you may be hauling. A route that is legally designated for motor vehicle use may still be uncomfortable or unsuitable for a wider machine, especially where the surface is rutted or the turning space is limited.
Think about the least experienced rider in your group, too. Grassland roads may have loose gravel, uneven surfaces, washouts, cattle guards, or limited room to turn around. A family ride with newer riders calls for a different plan than a short scouting trip with experienced adults and recovery gear.
Leave room for the conditions to change. Prairie weather can make a firm road slick, and a route that was manageable on the way in can be tougher on the way out. Check the forecast, bring water and basic recovery equipment, and avoid pressing onward if the road surface becomes unsafe. [North Dakota Trails Closed by Wet Weather] offers useful context on why surface conditions can matter as much as the route designation.
Check land boundaries and route access
Grassland maps do not erase property boundaries or replace other rules that apply to an area. A route may pass near private land, a recreation site, a grazing operation, or another managed area. Stay on the designated route and respect signs, gates, and closures. Do not ride around a barrier or onto an adjacent field simply because the route appears to continue on a phone screen.
At a junction, pause long enough to confirm where you are. Compare the route number or location with the map, watch for signs, and avoid following an unmarked track just because it appears to be the easiest way forward. If a sign on the ground indicates a closure or restriction, treat that information seriously and seek clarification before continuing.
Different public-land settings have different access rules. A national grassland road, a designated state trail, a private access road, and a county road may look similar on a map but are not interchangeable. [North Dakota Grassland Motor Vehicle Use Maps] and [North Dakota OHV Trail Map Downloads] can help you distinguish between map resources for different kinds of riding areas.
Combine the MVUM with current route information
An MVUM answers the designation question, but riders should also check for temporary closures, construction, fire restrictions, or other notices affecting their specific destination. Before traveling, look for current information from the land manager responsible for the area. If information is unclear, contact the managing office rather than relying on an old screenshot or an unverified social media post.
A navigation app can be helpful for orientation, especially when cell service is unreliable, but prepare before you leave town. Download the relevant maps, save key junctions, and carry a paper map if your route is remote. onX Offroad may be useful as a planning aid alongside the official map, particularly when you want to keep a digital route visible offline. Still, compare the route against the MVUM instead of assuming every app layer reflects the latest designation or closure.
Make a realistic plan for fuel and return time. Grassland routes can feel remote even when they are not far from a highway, and a wrong turn can add miles. Share your route and expected return time with someone who is not riding, and set a clear turnaround time with the group.
Common Map-Reading Mistakes to Avoid
Treating a visible track as permission
Satellite imagery, GPS tracks, and community-shared routes can show lines that are not designated for public motor vehicle travel. A track may be old, private, closed, or outside the boundaries of the land covered by the MVUM. Its presence on a screen does not establish permission.
This is one reason it helps to keep the official map available even when using an app. Use onX Offroad or another navigation tool to help locate yourself, but cross-check the route and any restrictions using the correct land-manager map. If the route is not clearly designated, stop and verify rather than testing it on the ground.
The same caution applies to shortcuts. Cutting across grassland to rejoin a road can create resource damage and may violate travel restrictions. If you miss a turn, backtrack along the route you know is open rather than improvising across the landscape.
Assuming the map tells you about conditions
A route shown as open may be muddy, snow-covered, rutted, or blocked by a temporary issue. The MVUM does not tell you whether a culvert washed out last week or whether deep gumbo is waiting beyond the next bend. It establishes designated access, not an assurance of safe or comfortable riding.
Look at the forecast and seek current local information where available. Bring a paper map and basic supplies, and plan a route that allows you to turn around without getting stuck. On a remote grassland road, a modest detour can become a significant problem if the group has limited fuel or one machine has a mechanical issue.
Do not let a planned destination become a reason to ignore changing conditions. If visibility drops, a road becomes too slick, or the route is blocked, turn back. A successful ride is one where everyone and every machine return safely—not one where the group reaches a particular point at any cost.
Forgetting that rules can differ beyond the map boundary
A map may cover only part of a planned journey. Once you leave the mapped grassland unit, you may enter a state-managed area, a county road, private property, or another federal jurisdiction. The route’s appearance may stay the same while the rules change.
Before planning a long ride that crosses boundaries, identify who manages each section and check the relevant rules for each area. For a route that includes a developed OHV destination, confirm its trail status separately. For example, [North Dakota Trail Status by App and Phone] is a useful related topic when checking conditions for designated riding areas, while grassland road access still needs to be checked against the correct MVUM.
A Practical Pre-Ride Checklist
Before loading the ATV or UTV, confirm that you have the right MVUM for the grassland unit, have read its legend, and have checked every planned route segment. Verify any seasonal or vehicle restrictions, download your navigation information, and carry a backup map. Look for current closures or alerts, then consider weather, fuel range, machine width, and the experience of your group.
On the ride, stay on designated routes, watch for signs and gates, and avoid following unmarked tracks. If your map and the conditions on the ground do not seem to match, pause and reassess. When in doubt, choose a route you can verify rather than relying on a guess.
Disclaimer
This article is for general informational purposes only and does not constitute professional advice. Laws, prices and regulations vary by location and change over time. Consult a qualified professional for guidance on your specific situation.
