Knolls and the Bombing Range Boundary
The Knolls OHV area’s open desert can make it hard to tell where public riding ends and restricted military land begins. That uncertainty is more than a navigation nuisance: crossing into a bombing-range area can put riders in danger and lead to serious consequences. This guide explains how to plan a ride, recognize boundary warnings, and stay on routes you’re allowed to use.
Understand the Knolls riding area and its boundary
Why the Knolls boundary deserves extra attention
The Knolls is a popular off-highway vehicle area in Utah’s West Desert, near Interstate 80 and west of Salt Lake City. Riders are drawn by the open terrain and the chance to explore on ATVs and UTVs. But an open-looking desert landscape can be misleading. A track in the sand or a gap between hills does not necessarily indicate a public route.
The Knolls is near the Utah Test and Training Range, a military training area where access is restricted. Riders should treat boundary signs, fences, gates, and posted closure notices as firm limits—not suggestions to check later. Do not cross a marked boundary to investigate, take a shortcut, or see where a track leads. Military areas may involve live training and hazardous materials, including unexploded ordnance.
The practical takeaway is simple: plan to ride within the designated public riding area, and turn around when signs or maps indicate that a route ends or enters restricted land. If you’re unsure whether a track is open, don’t use it until you can confirm its status through reliable land-management information.
A map line is useful, but it is not permission
Maps are essential in the West Desert, but they can create a false sense of certainty. A route drawn on a phone may be old, generalized, or not detailed enough to show a narrow boundary. Even a route that appears to continue across open ground may lead into land where public access is prohibited.
Use a map as one part of your planning, not as the final authority. Before leaving, review current land-management maps and notices, then compare them with what you see on the ground. A closure sign or boundary marker takes priority over an app’s apparent route line. If the map and the posted information seem to conflict, stop and choose a route that is clearly open.
Apps such as onX Offroad can help riders review route information and orient themselves, especially when several tracks appear to cross the same area. Download the map information you need before heading out, since mobile coverage can be unreliable. Still, no app can guarantee that every boundary, closure, or recent change is reflected. Keep using signs and official land information to make the final decision.
Plan a Knolls ride before leaving home
Check routes, closures, and land status
A little preparation can prevent the stressful moment when your group reaches a fork and nobody knows which way is safe to go. Look for current information from the relevant land manager before you tow out, and confirm that the area and routes you intend to use are open. Conditions and restrictions can change, so avoid relying on a saved route from a previous trip as proof of current access.
For broader map-reading tips, see [Reading a Motor Vehicle Use Map] and [Telling Open Routes From Closed on a Forest Map]. Those guides can help you think through the difference between a visible track and an authorized route. For area-specific planning, [Knolls OHV Area in Utah's West Desert] is also a useful companion topic.
If you use onX Offroad or another mapping tool, download maps while you still have a reliable connection. Check your planned route at more than one zoom level, look for restricted-area labels, and note a safe turn-around point before you ride. Keep a second navigation option available, such as an offline map or a paper map, rather than depending on one phone and one app.
Make a boundary plan for your group
Before anyone starts the engine, agree on how the group will handle uncertain routes. Pick a lead rider who checks the map and signs, and ask everyone to stop together at unfamiliar forks instead of following the first machine that moves. If riders become spread out, someone at the back might not see a warning or hear a change of plan.
A simple rule helps: if the group cannot confirm that a route is open, it does not continue down that route. Turn back to the last place where the route was clearly within the permitted riding area. Don’t let the pressure to keep up, the promise of a scenic view, or a nearly empty fuel tank push anyone toward a questionable shortcut.
Talk through what to do if the group gets separated. Choose a known meeting point within the open area, keep phones charged, and make sure each rider knows the general return direction. For more pre-ride preparation, use [Checking Utah Trail Conditions Before You Tow] and [What to Carry on a Utah Day Ride].
Recognize warning signs and respond safely
Treat signs, fences, and gates as hard stops
A posted warning is a clear instruction to stop, read it, and obey it. Do not ride around a sign, squeeze past a barrier, or assume a gate is open to recreational traffic just because it is not locked. A fence or gate may mark a boundary, protect an active area, or restrict travel for reasons that are not obvious from the trail.
If you reach a boundary marker, stop well before it and regroup. Check your position against your map and return the way you came if the route ahead is restricted or unclear. Avoid touching, moving, or collecting objects you find near a military boundary. In particular, never approach suspicious metal objects or other possible remnants of military activity. Leave them undisturbed and report the concern to the appropriate authorities from a safe location.
The same caution applies when the terrain appears empty. A quiet day does not mean a restricted area is safe or open. Do not cross into military land because you see no vehicles, hear no activity, or notice another set of tracks going that way.
Know when to turn around
Turning around can feel frustrating, especially after a long drive or when your group has planned a full day of riding. But it is the right call when a route reaches a closure, a boundary is unclear, or the map and posted information do not line up. The ride is not a failure because you changed plans; it becomes a problem when you knowingly continue into an area you cannot verify.
| What you encounter | Safer response |
|---|---|
| A sign identifying restricted or military land | Stop and turn back without crossing the marked boundary |
| A closed gate or barrier | Do not bypass it; return to an open route |
| A track that seems to continue beyond a boundary | Treat the track as unauthorized unless reliable information confirms otherwise |
| Conflicting map and on-the-ground information | Follow posted restrictions and choose a clearly open route |
| An unfamiliar object that could be military debris | Do not touch or approach it; move away and report it safely |
| A group member wants to explore beyond the marked area | Keep the group together and remain on confirmed public routes |
If you need to check your position, stop in a safe place before handling a phone or GPS device. Use your offline map to orient yourself, but do not let a location dot overrule a clear sign. If you discover that you may already have crossed a boundary, do not continue farther into the restricted area. Retrace your route carefully if you can do so safely, and contact the appropriate authorities for guidance rather than exploring or attempting to conceal the mistake.
Ride responsibly and build in backup plans
Prepare for remote desert conditions
The boundary is an important part of planning, but it is not the only challenge at the Knolls. The West Desert can be exposed, dusty, and far from services. Bring water, food, basic repair supplies, and enough fuel for the route you intend to ride plus a reasonable margin. Tell someone who is not on the ride where you plan to go and when you expect to return.
A downloaded route can help, but devices need power and can fail. Carry a charging option and consider a backup map. If you use onX Offroad, save the relevant map area before you leave service and make sure you understand how to view your location offline. Check that every rider knows how to stop recording, zoom out, and identify the group’s position rather than relying on one person to navigate.
Sand and uneven ground can also complicate recovery. Bring suitable recovery gear and make sure the people in your group know how to use it safely. [Recovery Gear for Utah Sand and Slickrock] offers additional preparation ideas. If a machine becomes disabled near a restricted boundary, do not take a risky route into closed land to retrieve it. Reassess from a safe location and seek appropriate help.
Keep permits and riding rules in mind
Registration and permit requirements depend on the machine, the rider, and where the vehicle is being operated. Before the trip, check what applies to your situation and make sure required documents are available. Visitors from outside Utah should review [Utah's Non-Resident OHV Permit Explained], while all riders can use [What Utah Riders Must Carry on Public Land] as a planning reference.
A permit or registration does not grant permission to ride anywhere you can physically reach. Riders still need to follow land closures, route restrictions, posted boundaries, and any applicable area rules. That distinction matters at the Knolls: having your paperwork in order does not make a restricted military area open to recreational riding.
Finally, leave room in your schedule for a change of plan. If a route is closed, a boundary is confusing, or conditions make navigation difficult, choose a different confirmed route or end the ride early. A flexible itinerary is far better than forcing a questionable crossing simply because the group hoped to reach a particular spot.
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.
