Portis Loop
Portis Loop is a 5.4 miles trail in Grand Mesa, Uncompahgre and Gunnison National Forests, Colorado. The Forest Service rates it trail class 3, developed. It is open to hiking, horse and pack stock, mountain biking, motorcycle and e-bikes.
Trail conditions, closures and hazards are not tracked here. The Grand Mesa, Uncompahgre and Gunnison 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 | 38.0649, -108.3234 · Directions ↗ |
| Other end | 38.0651, -108.3170 · 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
| Length | 5.4 miles |
| Trail class | 3, developed |
| Type | land trail |
| Surface | native material |
| Typical grade | 5-8 percent |
| Motor vehicles | Open to at least one motorized use |
| Accessibility | Not evaluated |
| Trail numbers | 5595 |
| Forest | Grand Mesa, Uncompahgre and Gunnison National Forests (unit 0204) |
| 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.
Allowed uses
| Hiking | Allowed 04/06 to 11/30 (month/day) |
| Horse and pack stock | Allowed 04/16 to 11/30 (month/day) |
| Mountain biking | Allowed 04/16 to 11/30 (month/day) |
| Motorcycle | Allowed 04/16 to 11/30 (month/day) |
| E-bikes | Allowed 04/16 to 11/30 (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.
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.
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. The recreation page link goes to the Forest Service site, which may redirect to the forest's recreation index.
Camping nearby
No federal campground is recorded within five miles of the trail. Dispersed camping is allowed on most National Forest land outside posted closures. The forest office has the current rules.
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
- WildfireGold Mountain
35 mi from the trail midpoint · 39,747 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
Reference
Questions people ask
How long is the Portis Loop?
5.4 miles, the sum of the 1 segment the Forest Service records under this name in Grand Mesa, Uncompahgre and Gunnison National Forests.
Source: Forest Service trail layer
What is allowed on the Portis Loop?
hiking, horse and pack stock, mountain biking, motorcycle and e-bikes. 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 Portis Loop start?
The line begins at 38.0649, -108.3234 and ends at 38.0651, -108.3170. 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 Portis Loop in a wilderness area?
No. The trail line does not cross any polygon in the National Wilderness Preservation System layer.
Source: Wilderness Connect
Where can I camp near the Portis Loop?
No federal campground is recorded within five miles of the trail. Dispersed camping is allowed on most National Forest land outside posted closures. The forest office has the current rules.
Source: Grand Mesa, Uncompahgre and Gunnison National Forests official page
How developed is the Portis Loop?
Trail class 3, which the Forest Service describes as 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 Portis Loop?
The typical grade is 5-8 percent.
Source: Forest Service trail layer
Who manages the Portis Loop?
Grand Mesa, Uncompahgre and Gunnison National Forests, Forest Service unit 0204. The trail is in Colorado.
Source: Grand Mesa, Uncompahgre and Gunnison National Forests official page
Is there a fire near the Portis Loop?
1 active incident within 50 miles of the trail midpoint as of 2026-09-17, the nearest Gold Mountain at 35 miles. Check the forest's closure orders before you go.
Source: Fire nearby
Source
This page is built from 1 segment named PORTIS LOOP in the Forest Service TrailNFS_Publish layer, administrative unit 0204. 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 September 17, 2026. The methodology page explains how segments become trails.