More Than Just Parks Motor Vehicle Use MapPowered byPublic Lands Intelligence
Comments closed 23 September 2026How to comment
The boundary of the Six Rivers National Forest drawn on the USGS topographic map, with the towns, highways and rivers around it.

Six Rivers National Forest

77 miles of road and motorized trail here are open to vehicles today. The Forest Service is rewriting the rule that decides which ones, and 73 miles of this forest’s motorized trail have no mapped location in the agency’s national route data.

This forest’s own boundary on the USGS topographic map.

Six Rivers National Forest

The Forest Service records 77 miles of designated road and motorized trail here, and almost none of it has a mapped location in the agency’s national route data. Below is what each class of vehicle may use, and what’s missing.

4road miles with a mapped location
0trail miles with a mapped locationmeasured from the lines
73trail miles with no mapped locationof 73 the agency records

Almost none of this forest’s routes have a mapped location in the agency’s national data

The Forest Service records 77 miles of designated road and motorized trail on the Six Rivers National Forest. Of that, 4 miles have a mapped location in the agency’s national route data. The rest, 73 miles, don’t. These aren’t empty records: the routes are named, listed as existing, and many carry live vehicle-class designations. They carry no location, so no map built on that data can show them, including this one. The mileage above is real. The location data is missing. This is a count of that national data, which the proposal would make the legal record, and not an audit of this forest’s own printed map.

That’s why this page has no map, and it is the reason this forest matters to the rule change below. The proposal would make digital maps the authoritative source for what is designated. On the Six Rivers National Forest, that source is 5 percent complete.

Check the forest's own Motor Vehicle Use Map before traveling. It is the legal document; this page is not.

The figures, from the agency’s own data

What each vehicle class can use

These are miles where the Motor Vehicle Use Map affirmatively designates the class as open. A blank value in the source data means the class is not designated on that segment. It is not the same as a closure, and no closed figure is published here because the data cannot support one.

Vehicle classRoad milesTrail milesTotal
Passenger vehicle404
High-clearance vehicle404
4WD over 50 in000
2WD over 50 in000
ATV000
Motorcycle000
Other wheeled OHV000
Tracked OHV under 50 in000
Other OHV under 50 in000

What the national data holds for this forest

The national dataset holds only 2 road records for the Six Rivers National Forest. That is a gap in what the agency has published, not a forest without roads, and it is why the map above shows almost none of them.

Ranger districtRoad recordsOn the mapMotorized trail recordsOn the map
Mad River Ranger District11116none
Lower Trinity Ranger District1125none
Orleans Ranger Districtnonenone4none
Gasquet Ranger Districtnonenone2none

Counts are records in the USDA Forest Service Enterprise Data Warehouse MVUM service, roads and trails layers, harvested 21 August 2026. “On the map” means the record carries geometry a map can draw. A district with no road records is not a district without roads; it is one the agency has not published to this dataset.

Why a route with no mapped location matters

A route on this forest is legal to drive only if it is on the forest’s Motor Vehicle Use Map. Every route the Forest Service designates gets a recorded length in its database; only some get a location anyone can pull up. A route with no location can’t be looked up in that data, can’t be proved legal from it, and can be left off the next map without anyone noticing. The proposal would make that next map the legal record.

73 miles of motorized trail on this forest, trails designated for ATVs, dirt bikes or side-by-sides, have no mapped location in the agency's national route data. Those routes are in the agency's route database with a length and, in many cases, live vehicle-class designations, but no location, so no map built on that data can show them. That is 100 percent of this forest's recorded motorized trail mileage. It is a count of that national data, which the proposal would make the legal record, and not an audit of this forest's own printed map.

This map is being rewritten, and comment is open

On 24 August 2026 the Forest Service proposed rewriting 36 CFR parts 212 and 261, the rules that produced this map. Today a route on the Six Rivers National Forest is closed to vehicles unless the forest studied it and put it on the map. The proposal flips that: open unless someone documents a reason to close it. It also removes the national rules that tell a forest supervisor to weigh damage to soil, water and wildlife, and conflict with other visitors, before a route goes in.

That change lands here in a specific way. The proposal would also make digital maps the authoritative source for what is designated, and 73 miles of this forest's motorized trail have no mapped location in that data at all. A route with no location is a route that’s hard to defend, hard to prove you may ride, and easy for the next map to leave out.

Public comment ran through docket FS-2026-0100 on regulations.gov until 23 September 2026. Comments that name a forest and say what the writer knows about it are the ones the agency has to answer. You know this one.

Comments closed 23 September 2026

Three minutes, in your own words. Your letter carries this forest's 73 miles of motorized trail that have no mapped location in the agency's national route data, because a comment that names a place is one the agency has to answer.

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Method. Figures for Six Rivers National Forest from the USDA Forest Service Enterprise Data Warehouse MVUM service, layers 1 and 2, harvested 21 August 2026. "Mapped" miles are measured from published geometry. "Recorded" miles come from the agency's route-length attribute and exist whether or not the route has been digitized. The two are different measures and are never added together. This page is not a legal travel document; the official MVUM for this forest is.