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Lost Creek Trail 1E09

The Lost Creek trailhead is across Highway 38 from the South Fork Campground. Beginning at the parking lot (6,320'), it crosses under the bridge. The beginning of the Lost Creek Trail follows the Santa Ana River Trail (2E03). After approximately .5 mile, the Lost Creek Trail splits from the Santa Ana River trail and heads up an old jeep road for about 1 mile before heading off (south/west) on a trail towards Grinnell Ridge Camp (no water-8,500'). From the Grinnell Ridge Camp, the trail descends into South Fork Meadows and meets with the South Fork Trail. This trail is one of the most underused and offers solitude and good views north to Santa Ana Canyon and Sugarloaf Peak. This is a wilderness area.

Current Conditions
A portion of the trail was burned over in the 2015 Lake Fire. Potential hazards include falling trees and limbs, loose rocks and ash pits. Portions of the trail may be damaged or blocked with debris. The trail may be hard to follow at times.

Specific Trail Information

Trail Number

1E09

Trail Type

Standard/Terra Trail — A trail that has a surface consisting predominantly of the ground and that is designed and managed to accommodate use on that surface.

General Information

Wilderness permits are required. Permits can be obtained online at San Gorgonio Wilderness Association (SGWA) permits webpage.

  • No in-person permits available at Ranger Station MUST obtain via online.

Group size limited to 12 people and 8 pack/riding animals per group. No campfires allowed. Portable gas stoves are allowed. Camp on a durable surface at least 100 feet away from trails and water sources. Pack out what you pack in. Leave no Trace!

Big Bear Discovery Center

Address: 40971 North Shore Drive, Highway 38 Fawnskin, CA 92333
Phone: (909) 382-2790
Hours: Thursday-Monday from 9:00 am to 4:00 pm, Tuesday & Wednesday Closed

Getting There

Trailhead/Starting Points

The Lost Creek trailhead is across Highway 38 from the South Fork Campground.

Directions

Latitude 34.170767

Longitude -116.829773

Elevation 6320 - 8500

Distance 4.72 miles

Difficulty Difficult/Strenuous

Additional Information

Operated By

USDA Forest Service

Nearby Recreation Sites

Recreation Opportunities

Last updated July 18th, 2025