Greenhorn Mountain Road
6.4 mi
Distance
505 ft
Elev. Gain
2h 23m
Est. Time
Point to Point
Route Type
Moderate
Difficulty
About This Trail
Greenhorn Mountain Road is a point-to-point trail in San Isabel National Forest, managed by the United States Forest Service, in Custer County, Colorado. It is 6.4 miles long and gains 505 feet. Per Colorado Parks and Wildlife (COTREX), it is open to bikes and horses. The nearest town is Rye, Colorado, about 9 miles away in a straight line.
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 | 3,407 ft |
| End | 6.4 mi | 3,489 ft |
Trail Details
Bike and horse access: Colorado Parks and Wildlife (COTREX), checked 2026-10-14. Rules change, so confirm with the land manager before you go.
- Route Type
- Point to Point
Official sources & verification
Managed by United States Forest Service
Managing agency
- United States Forest Service
Find offices, alerts, and current orders for this agency.
Where it is
- Nearest town:
- Rye, CO · about 9 mi away
- County:
- Custer County, CO
- Jurisdiction:
- San Isabel National Forest · United States Forest Service
Nearest town and county from U.S. Census Bureau place records and county boundaries.
Reviews
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Imported route
In this park
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Stay nearby
Campgrounds near this trail

Ponderosa Group - Lake Isabel
2.5 mi awaySan Isabel National Forest
Rye, CO
Check official pricing1 sitesReservable No Service
Spruce Group - Lake Isabel
2.5 mi awaySan Isabel National Forest
Rye, CO
Check official pricing1 sitesReservable No Service
Spruce Group Campground
2.8 mi awaySan Isabel National Forest
National Forest Reservable
Ponderosa Group Campground
2.9 mi awaySan Isabel National Forest
National Forest Reservable
St Charles Campground - Lake Isabel
3.2 mi awaySan Isabel National Forest
Rye, CO
Check official pricing15 sitesReservable TentRV Well reviewed No Service
Southside Campground - Lake Isabel
3.6 mi awaySan Isabel National Forest
Rye, CO
Check official pricing16 sitesReservable TentRV No Service
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