Halfmoon Pass
Halfmoon Pass Trail is a 6.9-mile trail in Rio Grande National Forest, Colorado. The Forest Service rates it trail class 2, moderately developed. It is open to hiking, horse and pack stock and mountain biking. It enters La Garita Wilderness.
Trail conditions, closures and hazards are not tracked here. The Rio Grande National Forest official page carries current alerts and closure orders.
Map
One end Other endLine simplified to about 100 metres. Basemap from the USGS National Map.
| One end | 37.9751° N, 106.7426° W · Directions ↗ |
| Other end | 37.9013° N, 106.7846° W · Directions ↗ |
The ends are the two ends of the longest connected chain of segments. The record does not say which is the usual start. The trail is recorded as 3 segments.
The trail
| Length | 6.9 miles |
| Trail class | 2, moderately developed |
| Type | land trail |
| Surface | native material |
| Typical grade | 12-20 percent |
| Typical tread width | 18-24 inches |
| Motor vehicles | Closed to all motorized use year-round |
| Accessibility | Not evaluated |
| Trail numbers | 912 |
| Forest | Rio Grande National Forest (unit 0209) |
| States | Colorado |
| Detail published | management level, with uses |
Values are the set across all segments. Class 1 is minimally developed and class 5 is fully developed. Grade and width are the forest's typical values, not measured extremes.
Weather by month
Allowed uses
| Hiking | Allowed 05/16 to 11/15 (month/day) |
| Horse and pack stock | Allowed |
| Mountain biking | Allowed year-round |
A use is listed when the Forest Service records it as managed, accepted or discouraged on any segment. Discouraged still means legal. Uses marked restricted are left out. Where the forest publishes a Motor Vehicle Use Map, that map governs motorized use.
Wilderness
- La Garita WildernessFS · about 91% of the line is insideWilderness Connect ↗
Inside a designated wilderness, bicycles and motor vehicles are prohibited by law regardless of the trail record, and permits or group limits may apply.
Trailheads
The Forest Service recreation layer records no trailhead within a third of a mile of this trail's line. Many trails start from a road pullout or another trail with no trailhead record. The forest's recreation pages list the trailheads it does publish.
Trails nearby
Camping nearby
Campsite Atlas cards carry site counts and booking links from Recreation.gov. Forest Service cards come from the recreation layer and link the agency page.
Fire nearby
- PrescribedEast Bench Piles Rx
11 mi from the trail midpoint · 5 acres
- PrescribedSargents Mesa Piles Rx
32 mi from the trail midpoint · 116 acres
- PrescribedBoogie Piles Rx
32 mi from the trail midpoint · 171 acres
- PrescribedWolf Creek Piles Rx
32 mi from the trail midpoint · 2 acres
Distance is to the reported incident point, not the fire edge. Closure orders are on the forest's official page.
Explore
Historic places nearby
Guidebooks for Colorado
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Titles come from Open Library's catalog, matched by subject heading or by title.
Reference
Questions people ask
How long is the Halfmoon Pass Trail?
The Forest Service records 6.9 miles under this name in Rio Grande National Forest, the sum of 3 segments.
Source: Forest Service trail layer
What is allowed on the Halfmoon Pass Trail?
Hiking, horse and pack stock and mountain biking are allowed. The trail is closed to motor vehicles year-round. Some uses are seasonal. The allowed uses section lists the dates.
Source: Forest Service trail layer
Where does the Halfmoon Pass Trail start?
The line begins at 37.9751° N, 106.7426° W and ends at 37.9013° N, 106.7846° W. No Forest Service trailhead is recorded within a third of a mile of it. The record does not say which end is the usual start.
Source: Forest Service trail layer
Is the Halfmoon Pass Trail in a wilderness area?
Yes. It enters La Garita Wilderness. Wilderness rules ban bicycles and motor vehicles and often limit group size.
Source: La Garita Wilderness
Where can I camp near the Halfmoon Pass Trail?
Stone Cellar Campground (4.6 mi) is within five miles of the trail. The camping section lists it with the season each forest publishes.
How developed is the Halfmoon Pass Trail?
Trail class 2, which the Forest Service describes as moderately developed. Class 1 is a minimal, unimproved route and class 5 is fully developed, often paved.
Source: Forest Service trail layer
How steep and how wide is the Halfmoon Pass Trail?
The typical grade is 12-20 percent. The typical tread is 18-24 inches wide.
Source: Forest Service trail layer
Who manages the Halfmoon Pass Trail?
Rio Grande National Forest, Forest Service unit 0209. The trail is in Colorado.
Is there a fire near the Halfmoon Pass Trail?
The interagency feed shows 4 active incidents within 50 miles of the trail midpoint as of 2026-11-01, the nearest East Bench Piles Rx at 11 miles. Check the forest's closure orders before you go.
Source: Fire nearby
Source
This page is built from 3 segments named Halfmoon Pass in the Forest Service TrailNFS_Publish layer, administrative unit 0209. Wilderness overlap is tested against the National Wilderness Preservation System layer from Wilderness Connect. Trailheads and Forest Service campgrounds come from the Forest Service Recreation Opportunities layer. Data refreshed November 1, 2026. The methodology page explains how segments become trails.