R-795 · Route File
Hopland Grade Highway 175
Mendocino and Lake counties, California · United States
A steep and winding state highway crossing the Mayacamas between Hopland and the Clear Lake basin.
- Primary window
- Year-round when open
- References
- 9
- Coverage
- established
- Reviewed
- Jul 2026
Route tire evidence
Tires reported on Hopland Grade Highway 175
No reviewed tire observation is published for this route.
No tire name is inferred from route popularity, forum mentions or marketing. A report appears only after its tire, motorcycle, route context, date and named source are reviewed.
Route-specific references
Sources for Hopland Grade Highway 175
Information tied directly to this road, track or route.
Roads and access
Maps and navigation
Specialist and community
Regional reference desk
Authorities covering the wider journey
Shared road, weather and access services used across Route Files in this region.
Weather
Roads and access
Emergency and medical
Field Links are reviewed references, not live guarantees. Conditions, closures, services and regulations change. Confirm critical information with the responsible authority before relying on it.