Heart Lake NRT
Heart Lake NRT is a 8.8 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. It enters Lassen Volcanic Wilderness.
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 | 40.4286, -121.6305 · Directions ↗ |
| Other end | 40.4277, -121.5722 · 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 5 segments.
The trail
| Length | 8.8 miles |
| Trail class | 3, 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 | Evaluated and does not meet accessibility guidelines |
| National designation | National Recreation Trail or other national designation |
| Trail numbers | 310 |
| 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.
Wilderness
- Lassen Volcanic Wilderness WildernessNPS · the line touches the boundaryWilderness 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.
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 Heart Lake NRT?
8.8 miles, the sum of the 5 segments the Forest Service records under this name in Lassen National Forest.
Source: Forest Service trail layer
What is allowed on the Heart Lake NRT?
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 Heart Lake NRT start?
The line begins at 40.4286, -121.6305 and ends at 40.4277, -121.5722. 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 Heart Lake NRT in a wilderness area?
Yes. It enters Lassen Volcanic Wilderness. Wilderness rules ban bicycles and motor vehicles and often limit group size.
Where can I camp near the Heart Lake NRT?
Southwest Campground - Winter/Spring (2 mi), Battle Creek Campground (3.3 mi) and Hole-In-The-Ground Campground (4.9 mi) are within five miles of the trail. Site counts and booking links are on Campsite Atlas.
Source: Campsite Atlas
How developed is the Heart Lake NRT?
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 Heart Lake NRT?
The typical grade is 12-20 percent. The typical tread is 18-24 inches wide.
Source: Forest Service trail layer
Is the Heart Lake NRT accessible?
No. The Forest Service evaluated it and found it does not meet its accessibility guidelines.
Source: Forest Service trail layer
Is the Heart Lake NRT a national trail?
Yes. The record marks it as a National Recreation Trail.
Source: Forest Service trail layer
Who manages the Heart Lake NRT?
Lassen National Forest, Forest Service unit 0506. The trail is in California.
Source
This page is built from 5 segments named HEART LAKE NRT 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.