Keyser Ridge
Keyser Ridge Trail is a 12.5-mile trail in Arapaho and Roosevelt National Forests, Colorado. The Forest Service rates it trail class 2, moderately developed. It is open to hiking, horse and pack stock, snowmobile, snowshoeing and cross-country skiing. It enters Byers Peak Wilderness.
Trail conditions, closures and hazards are not tracked here. The Arapaho and Roosevelt National Forests 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 | 39.8960° N, 106.0831° W · Directions ↗ |
| Other end | 39.8819° N, 106.0379° 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 4 segments.
The trail
| Length | 12.5 miles |
| Trail class | 2, moderately developed |
| Type | snow trail, land trail |
| Surface | native material, snow |
| Typical grade | 5-8 percent, 12-20 percent |
| Typical tread width | 48-60 inches, 18-24 inches |
| Motor vehicles | Open to at least one motorized use |
| Accessibility | Not evaluated |
| Trail numbers | 19, SNO-140 |
| Forest | Arapaho and Roosevelt National Forests (unit 0210) |
| 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 06/01 to 11/15 (month/day) |
| Horse and pack stock | Allowed 06/01 to 11/15 (month/day) |
| Snowmobile | Allowed 11/16 to 05/31 (month/day) |
| Snowshoeing | Allowed 11/16 to 05/31 (month/day) |
| Cross-country skiing | Allowed 11/16 to 05/31 (month/day) |
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
- Byers Peak WildernessFS · about 9% 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
Keyser Ridge Trailhead No season published | under 0.1 mi |
Distance is from the point to the nearest part of the trail line. Season text is what the forest wrote and is often a season name rather than a date.
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
- PrescribedHarris Park Broadcast Rx
39 mi from the trail midpoint · 390 acres
- PrescribedFront Country Broadcast Rx
41 mi from the trail midpoint
- WildfireWillow
50 mi from the trail midpoint · 7,359 acres · 92% contained
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 Keyser Ridge Trail?
The Forest Service records 12.5 miles under this name in Arapaho and Roosevelt National Forests, the sum of 4 segments.
Source: Forest Service trail layer
What is allowed on the Keyser Ridge Trail?
Hiking, horse and pack stock, snowmobile, snowshoeing and cross-country skiing are allowed. The trail is open to at least one motorized use. Some uses are seasonal. The allowed uses section lists the dates.
Source: Forest Service trail layer
Where does the Keyser Ridge Trail start?
The line begins at 39.8960° N, 106.0831° W and ends at 39.8819° N, 106.0379° W. The nearest recorded trailhead is Keyser Ridge Trailhead, under 0.1 miles from the line. The record does not say which end is the usual start.
Source: Forest Service trail layer
Is the Keyser Ridge Trail in a wilderness area?
Yes. It enters Byers Peak Wilderness. Wilderness rules ban bicycles and motor vehicles and often limit group size.
Source: Byers Peak Wilderness
Where can I camp near the Keyser Ridge Trail?
Horseshoe Campground (0.5 mi) is within five miles of the trail. The camping section lists it with site counts and booking links.
Source: Campsite Atlas
How developed is the Keyser Ridge 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 Keyser Ridge Trail?
The typical grade is 5-8 percent on most segments and 12-20 percent on others. The typical tread is 48-60 inches wide.
Source: Forest Service trail layer
Who manages the Keyser Ridge Trail?
Arapaho and Roosevelt National Forests, Forest Service unit 0210. The trail is in Colorado.
Source: Arapaho and Roosevelt National Forests official page
Is there a fire near the Keyser Ridge Trail?
The interagency feed shows 3 active incidents within 50 miles of the trail midpoint as of 2026-11-01, the nearest Harris Park Broadcast Rx at 39 miles. Check the forest's closure orders before you go.
Source: Fire nearby
Source
This page is built from 4 segments named Keyser Ridge in the Forest Service TrailNFS_Publish layer, administrative unit 0210. 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.