Lower Trinity Ranger District
The Lower Trinity Ranger District in Six Rivers National Forest (California) has 3.7 miles of motorized routes on the U.S. Forest Service Motor Vehicle Use Map — 3.7 miles of roads and 0 miles of trails across 26 designated routes. Vehicle access: ATV 0 mi · Motorcycle 0 mi · E-bike routes. Seasonal routes generally open May 1 and close Nov 15. Every route here is informational and derived from the MVUM data — it is not a legal document; carry and follow the district's official Motor Vehicle Use Map. Download the routes as GPX for your GPS or riding app.
- Total motorized miles
- 3.7
- Roads
- 3.7 mi
- Trails
- 0 mi
- Year-round miles
- 3.7 mi
- Seasonal miles
- 0 mi
3.7 mi of roads · 0 mi of trails, across 26 designated routes on the Motor Vehicle Use Map.
Vehicle access
What the MVUM designates for each vehicle class in this district — open miles, route count and season. A blank designation means the class is not designated here; it is shown as such, never guessed. ATV, motorcycle and e-bike classes are highlighted.
| Vehicle class | Open miles | Routes | Season |
|---|---|---|---|
| Core off-highway (OHV) | |||
| ATV | 0 | 21 | Varies by route |
| Motorcycle / dirt bike | 0 | 24 | Year-round |
| Other wheeled OHV | 0 | 19 | Varies by route |
| Wider OHV (over 50 inches) | |||
| 4WD > 50" | 0 | 22 | Varies by route |
| 2WD > 50" | 0 | 18 | Year-round |
| Tracked OHV > 50" | — | — | Not designated |
| Other OHV > 50" | — | — | Not designated |
| Narrow OHV (under 50 inches) | |||
| Tracked OHV < 50" | — | — | Not designated |
| Other OHV < 50" | — | — | Not designated |
| E-bikes | |||
| E-bike Class 1 | 0 | 25 | Varies by route |
| E-bike Class 2 | 0 | 25 | Varies by route |
| E-bike Class 3 | 0 | 25 | Varies by route |
| Road-legal / licensed vehicles | |||
| Passenger vehicle | 3.7 | 1 | Year-round |
| High-clearance vehicle | 3.7 | 20 | Varies by route |
| Truck | 3.7 | 1 | Year-round |
| Bus | 3.7 | 1 | Year-round |
| Motorhome | 3.7 | 1 | Year-round |
Seasons
Of the 3.7 motorized miles here, about 3.7 miles are open year-round and 0 miles are seasonal — the seasonal window generally runs from 05/01 to 11/15 (MM/DD). Each vehicle class can carry its own season; see the access matrix above, and always confirm current status on the official Motor Vehicle Use Map.
Download the routes (GPX)
Load these into your GPS unit or riding app (onX, Gaia, Avenza and most handhelds read GPX).
Named routes
Show the 1 named routes in this district
Named routes on the MVUM and whether ATV and motorcycle use is designated on each. This is a per-district reference, not a separate page per route. Use the filter to find a route.
| HAPPY CAMP MTN RD | · | · |
|---|
Data: U.S. Forest Service, Enterprise Data Warehouse (EDW) Motor Vehicle Use Map — Roads (layer 1) and Trails (layer 2), retrieved 2026-07-11. A work of the U.S. Government, public domain (17 U.S.C. §105). State assignment: U.S. Census Bureau TIGERweb state boundaries.
This page is a searchable summary of the Forest Service Motor Vehicle Use Map data — it is not the official MVUM and not a legal document. Route designations, closures and conditions change. The controlling document is the district's official Motor Vehicle Use Map: carry it and follow posted signs when you ride.
Data vintage: USFS EDW MVUM, retrieved 2026-07-11.
Nearby districts
The six nearest ranger districts by centroid distance (great-circle) — cross-forest and cross-state neighbours included — for planning a wider trip.
| District | Forest | Total miles | Distance |
|---|---|---|---|
| Big Bar Ranger District | Shasta-Trinity National Forest, CA | 352.9 | 22 km |
| Salmon River Ranger District | Klamath National Forest, CA | 473.2 | 39 km |
| Hayfork Ranger District | Shasta-Trinity National Forest, CA | 682.1 | 51 km |
| Ukonom Ranger District | Klamath National Forest, CA | 232.6 | 60 km |
| Weaverville Ranger District | Shasta-Trinity National Forest, CA | 485.4 | 63 km |
| Mad River Ranger District | Six Rivers National Forest, CA | 0.1 | 80 km |
Frequently asked questions
- Can you ride an ATV in the Lower Trinity Ranger District?
- Yes. The MVUM designates ATV use on about 0 miles across 21 routes here (varies by route). Confirm on the district's official Motor Vehicle Use Map before you ride.
- How many miles of motorized routes are in the Lower Trinity Ranger District?
- 3.7 miles total — 3.7 miles of roads and 0 miles of trails, across 26 designated routes on the Forest Service MVUM.
- Is this the official Motor Vehicle Use Map?
- No. This page is an informational, searchable view of the MVUM route data. It is not a legal document. The controlling document is the district's official MVUM — always carry and follow it.
- Are the routes open year-round?
- Partly. About 3.7 miles are open year-round and 0 miles are seasonal (typically open May 1 to Nov 15). Each vehicle class can have its own season — see the access matrix above.
More in California
See every ranger district in Six Rivers National Forest, browse all California national-forest routes, or read the methodology behind these figures. New to MVUMs? Start with what a Motor Vehicle Use Map is.