Upper Union Hill Trail
0.3 mi
Distance
89 ft
Elev. Gain
8m
Est. Time
Point to Point
Route Type
Easy
Difficulty
About This Trail
Upper Union Hill Trail is a point-to-point trail in Empire Mine State Historic Park, managed by the California Department of Parks and Recreation, in Nevada County, California. It is 0.3 miles long and gains 89 feet. The surface is dirt. Per OpenStreetMap contributors, it is open to bikes and horses. It is in or next to Grass Valley, California.
From the trail data on this page. For conditions and closures, see official sources.
Trail Conditions
Trail Conditions
We have no current condition data for this trail. Check with the operator before you go, and submit a report below if you've been recently.
No recent condition reports. Be the first to share what you see on the trail.
Elevation Profile
| Point | Distance from start | Elevation |
|---|---|---|
| Start | 0.0 mi | 853 ft |
| End | 0.3 mi | 882 ft |
Trail Details
Bike and horse access: OpenStreetMap contributors, checked 2026-10-14. Rules change, so confirm with the land manager before you go.
- Route Type
- Point to Point
- Surface
- Dirt
Official sources & verification
Managed by California Department of Parks and Recreation
Source of truth
- Empire Mine State Historic Park — official page
Park unit page with alerts and visitor information.
Where it is
- Nearest town:
- Grass Valley, CA · in or next to town
- County:
- Nevada County, CA
- Jurisdiction:
- Empire Mine State Historic Park · California Department of Parks and Recreation
Nearest town and county from U.S. Census Bureau place records and county boundaries.
Verify by phone or mail
- Operator:(530) 273-8522
Reviews
No reviews yet
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OpenStreetMap
Nearby Trails
More trails near Upper Union Hill TrailIn this park
Other trails in Empire Mine State Historic Park
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Stacey Lane Trail
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Osborne Loop Crosscut
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Osborne Hill Loop Trail
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Prescott Hill Crosscut Trail
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Betsy Mine Trail
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Stay nearby
Campgrounds near this trail
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