Spencer Meadow Loop
Spencer Meadow Loop is a 4.7 miles trail in Lassen National Forest, California. The Forest Service rates it trail class 3, developed. It is open to hiking, horse and pack stock and mountain biking.
Trail conditions, closures and hazards are not tracked here. The Lassen 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 | 40.3741, -121.4811 · Directions ↗ |
| Other end | 40.4141, -121.4842 · 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 2 segments.
The trail
| Length | 4.7 miles |
| Trail class | 3, developed |
| Type | land trail |
| Surface | native material |
| Typical tread width | 18-24 inches |
| Motor vehicles | Closed to all motorized use year-round |
| Accessibility | Not evaluated |
| National designation | National Recreation Trail or other national designation |
| Trail numbers | 407A |
| Forest | Lassen National Forest (unit 0506) |
| States | California |
| 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 05/01 to 11/01 (month/day) |
| Horse and pack stock | Allowed 05/01 to 11/01 (month/day) |
| Mountain biking | Allowed 05/01 to 11/01 (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
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
Historic places nearby
Reference
Questions people ask
How long is the Spencer Meadow Loop?
4.7 miles, the sum of the 2 segments the Forest Service records under this name in Lassen National Forest.
Source: Forest Service trail layer
What is allowed on the Spencer Meadow Loop?
hiking, horse and pack stock and mountain biking. 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 Spencer Meadow Loop start?
The line begins at 40.3741, -121.4811 and ends at 40.4141, -121.4842. 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 Spencer Meadow 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 Spencer Meadow Loop?
Southwest Campground - Winter/Spring (2.9 mi) is within five miles of the trail. Site counts and booking links are on Campsite Atlas.
Source: Campsite Atlas
How developed is the Spencer Meadow 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 Spencer Meadow Loop?
The typical tread is 18-24 inches wide.
Source: Forest Service trail layer
Is the Spencer Meadow Loop a national trail?
Yes. The record marks it as a National Recreation Trail.
Source: Forest Service trail layer
Who manages the Spencer Meadow Loop?
Lassen National Forest, Forest Service unit 0506. The trail is in California.
Source
This page is built from 2 segments named SPENCER MEADOW LOOP in the Forest Service TrailNFS_Publish layer, administrative unit 0506. 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.