A good overland route is planned at a desk long before you turn off pavement. The work is research: drawing a realistic line, confirming every road on it is legally open, finding where you’ll sleep, and making sure someone knows where you are. Do this well and the trip mostly takes care of itself. Skip it and you’ll spend the trip improvising around closed roads and dead ends.
This is the heart of the trip planning workflow. Here’s the process, step by step.
Step 1: Build the line on a desktop
Plan on a big screen, not a phone. A desktop route builder — Trailforks has a strong one — lets you drag-and-drop a route, view the elevation profile, and estimate distance and time, then sync the plan to your phone. Gaia GPS and onX also support building and saving routes you’ll carry into the field.
As you draw, keep it realistic: backcountry miles are slow. A route that looks like a two-hour drive on pavement may take all day on dirt. Build in margin.
Step 2: Verify every road is legally open
A line on a map isn’t permission. Cross-reference your planned path against MVUM layers (Motor Vehicle Use Maps) in Gaia GPS to confirm which roads are legally open to motor vehicles. Many forest roads that appear on general maps are closed to vehicles, seasonal, or restricted by vehicle type.
While you’re at it, check land-ownership layers (onX is strong here) to make sure your route and campsites aren’t crossing private or restricted land. Driving a closed road or trespassing is how access gets revoked for everyone.
Step 3: Ground-truth with the local ranger station
Maps and apps lag reality. Call the local ranger station (BLM field office or Forest Service district) for real-time updates on:
- Seasonal closures
- Fire restrictions or bans
- Road washouts and storm damage
- Permit requirements
A five-minute phone call routinely saves a wasted day driving to a gate.
Step 4: Plan fuel, water, and camp
Work out the logistics the route demands:
- Fuel: Confirm your range covers the distance between reliable stations, with margin. Remote routes can have 200+ miles between fuel.
- Water: Identify fill points, or plan to carry enough — at least one gallon per person per day.
- Camp: Pin legal dispersed sites along the route, plus a backup for each night. Use high-resolution satellite imagery to find spur roads and clearings away from the popular app pins for more privacy. See how to find free dispersed camping for the full method.
Step 5: Build a safety plan
Before you leave, share a detailed itinerary — your exact route and expected check-in times — with an emergency contact at home. In areas with no cell signal, carry a satellite communicator so you can call for help regardless. More on traveling without backup in our solo overlanding tips.
Step 6: Download everything offline
Your phone will lose signal. While you still have service, download offline maps, your route, and your camp pins. Confirm they open with airplane mode on before you leave. Cloud-only navigation is no navigation once you’re out of range.
Common mistakes to avoid
- Overestimating daily distance. Dirt miles are slow; plan conservatively and you’ll enjoy the trip instead of racing daylight.
- Trusting the map’s road status. Always verify with MVUM and a ranger call — closures and washouts won’t show on a general map.
- No backup camp. Sites fill, wash out, or turn out to be inaccessible. Always have a Plan B.
- Forgetting fuel math. Range anxiety in the backcountry is avoidable with a quick calculation.
- Leaving no itinerary behind. If something goes wrong, the difference between a quick rescue and a long ordeal is whether anyone knows where you are.
The takeaway
Route planning is a sequence: build a realistic line, verify every road is legally open with MVUM layers, ground-truth with rangers, lock in fuel/water/camp, set a safety plan, and download it all offline. Get your tools sorted first with best overland navigation apps, and don’t forget to prep the rig with the packing checklist — including tire pressure for the terrain, covered in airing down off-road.