Lost Creek
Lost Creek Trail is a 4.7-mile trail in San Bernardino National Forest, California. The Forest Service rates it trail class 2 to 3, moderately developed to developed. The forest has not published allowed uses for it. It enters San Gorgonio Wilderness.
Trail conditions, closures and hazards are not tracked here. The San Bernardino 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 | 34.1668° N, 116.8265° W · Directions ↗ |
| Other end | 34.1339° N, 116.8445° 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 2 segments.
The trail
| Length | 4.7 miles, all of it evaluated accessible |
| Trail class | 2, moderately developed; 3, developed |
| Type | land trail |
| Surface | native material |
| Typical grade | 12-20 percent |
| Typical tread width | 18-24 inches |
| Accessibility | At least one segment meets Forest Service accessibility guidelines |
| Trail numbers | 1E09, 1E09.1 |
| Forest | San Bernardino National Forest (unit 0512) |
| States | California |
| Detail published | basic characteristics |
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
Wilderness
- San Gorgonio WildernessFS · about 78% 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
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.
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
- WildfireGreen
11 mi from the trail midpoint · 55 acres
- PrescribedGreater El Cariso Rx
47 mi from the trail midpoint
Distance is to the reported incident point, not the fire edge. Closure orders are on the forest's official page.
Explore
Historic places nearby
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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 Lost Creek Trail?
The Forest Service records 4.7 miles under this name in San Bernardino National Forest, the sum of 2 segments. All of it is evaluated as accessible.
Source: Forest Service trail layer
What is allowed on the Lost Creek Trail?
San Bernardino National Forest has not published allowed uses for this trail. The forest office can say what is open.
Where does the Lost Creek Trail start?
The line begins at 34.1668° N, 116.8265° W and ends at 34.1339° N, 116.8445° W. 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 Lost Creek Trail in a wilderness area?
Yes. It enters San Gorgonio Wilderness. Wilderness rules ban bicycles and motor vehicles and often limit group size.
Source: San Gorgonio Wilderness
Where can I camp near the Lost Creek Trail?
South Fork Family Campground (0.2 mi), Oso Group (1.8 mi) and Lobo Group (1.8 mi) are within five miles of the trail. The camping section lists all 8 with site counts and booking links.
Source: Campsite Atlas
How developed is the Lost Creek Trail?
Trail class 2 to 3, which the Forest Service describes as moderately developed to 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 Lost Creek Trail?
The typical grade is 12-20 percent. The typical tread is 18-24 inches wide.
Source: Forest Service trail layer
Is the Lost Creek Trail accessible?
The Forest Service has evaluated 4.7 miles of this trail as meeting its accessibility guidelines. The surface is native material.
Source: Forest Service trail layer
Who manages the Lost Creek Trail?
San Bernardino National Forest, Forest Service unit 0512. The trail is in California.
Is there a fire near the Lost Creek Trail?
The interagency feed shows 2 active incidents within 50 miles of the trail midpoint as of 2026-11-01, the nearest Green at 11 miles. Check the forest's closure orders before you go.
Source: Fire nearby
Source
This page is built from 2 segments named Lost Creek in the Forest Service TrailNFS_Publish layer, administrative unit 0512. 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.