Diamond Lake Loop RD Snomo
Diamond Lake Loop RD Snomo Trail is a 12 miles snow trail in Umpqua National Forest, Oregon. The Forest Service rates it trail class 3, developed. It is open to snowmobile, snowshoeing and cross-country skiing.
Trail conditions, closures and hazards are not tracked here. The Umpqua 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 | 43.1268, -122.1356 · Directions ↗ |
| Other end | 43.1368, -122.1375 · 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 | 12 miles |
| Trail class | 3, developed |
| Type | snow trail |
| Surface | snow |
| Typical grade | 12-20 percent |
| Typical tread width | 60-96 inches |
| Motor vehicles | Open to at least one motorized use |
| Accessibility | Not evaluated |
| Trail numbers | SNO-1589 |
| Forest | Umpqua National Forest (unit 0615) |
| States | Oregon |
| 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
| Snowmobile | Allowed 11/10 to 01/31 (month/day) |
| Snowshoeing | Allowed 10/01 to 05/31 (month/day) |
| Cross-country skiing | Allowed 10/01 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.
Trailheads
Open Year Round | 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. The recreation page link goes to the Forest Service site, which may redirect to the forest's recreation index.
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.
Explore
Park units nearby
Reference
Questions people ask
How long is the Diamond Lake Loop RD Snomo Trail?
12 miles, the sum of the 1 segment the Forest Service records under this name in Umpqua National Forest.
Source: Forest Service trail layer
What is allowed on the Diamond Lake Loop RD Snomo Trail?
snowmobile, snowshoeing and cross-country skiing. 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 Diamond Lake Loop RD Snomo Trail start?
The line begins at 43.1268, -122.1356 and ends at 43.1368, -122.1375. The nearest recorded trailhead is Howlock Mountain Trailhead, 0.1 miles from the line. The record does not say which end is the usual start.
Source: Forest Service trail layer
Is the Diamond Lake Loop RD Snomo Trail 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 Diamond Lake Loop RD Snomo Trail?
Broken Arrow Campground (0 mi), Diamond Lake (0 mi) and Thielsen View Campground (0 mi) are within five miles of the trail. Site counts and booking links are on Campsite Atlas.
Source: Campsite Atlas
How developed is the Diamond Lake Loop RD Snomo Trail?
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 Diamond Lake Loop RD Snomo Trail?
The typical grade is 12-20 percent. The typical tread is 60-96 inches wide.
Source: Forest Service trail layer
Who manages the Diamond Lake Loop RD Snomo Trail?
Umpqua National Forest, Forest Service unit 0615. The trail is in Oregon.
Source
This page is built from 1 segment named DIAMOND LAKE LOOP RD SNOMO in the Forest Service TrailNFS_Publish layer, administrative unit 0615. 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.