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San Bernardino National Forest

Grays Peak/ Hanna Flat

USFS trail 1W05

The route in 3D

Fly this trail over real terrain

USGS and partner elevation data build the terrain, and the US Forest Service centerline draws the route.

3.8 mi · Typical grade 8 to 10%

About 200 ft between the route's high and low points. An estimate from US government elevation data, computed 2026-07-10; not measured in the field.

Trail facts

Length: 3.8 mi mapped
Grade: Typical grade 8 to 10%
Surface: native material
Accessibility: Listed by the USFS as accessible
Designation: National trail designation
National forest

San Bernardino National Forest

Length is the trail as the Forest Service maps it, not a trip distance. Hike out and back and you will cover it twice; check the shape of the route before you count on the figure.

This record is a snapshot of U.S. Forest Service data retrieved on 2026-07-09. It does not reflect current closures, conditions, or seasonal orders. Check with the local ranger district before you go.

Elevation

About 290 ft of climbing one way, measured in the harder direction.

High point: About 7,300 ft
Low point: About 7,100 ft

Estimates, derived from US government elevation data sampled along the USFS-mapped route, computed 2026-07-10. We have not measured these figures in the field.

Access points

Listed on Recreation.gov and matched to this trail by name and location, retrieved 2026-07-10. We have not visited or verified these access points.

Grays Peak Group Camp
Campground
View on Recreation.gov
Hanna Flat
Campground
View on Recreation.gov

Set your ZIP or use your location for drive times to these access points.

Plan a day on this trail

A day here means a typical grade of 8 to 10%. Tell the Trip Builder where you are headed and it assembles a day-specific kit with weather, daylight, and terrain in mind.

Data: U.S. Forest Service, retrieved 2026-07-09.

Grays Peak/ Hanna Flat — California · Alpenstock

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