The trailhead for both Hanna Flat and Gray's Peak is located 0.6-mile west of Fawnskin on the northshore of Big Bear Lake across from the Grout Bay Picnic Ground. The trailhead is in the center of a bald eagle wintering habitat area and is closed to all public use from November 1 to April 1.

From the trailhead the access to Hanna Flat Trail climbs to the west for 0.5-mile until it merges with Forest Road 2N04X . Turning north (right), 2N04X joins FR 2N70 after 0.25-mile. Go straight (do not turn left) and continue to the beginning of the Hanna Flat Trail, 250 yards on your right. The Hanna Flat Trail climbs 4 miles to Hanna Flat Campground (elevation 7,000 feet), where hikers find 88 campsites and potable water.

Directions: From Fawnskin, Travel west on Highway 38 for 0.6-mile to reach the Gray's Peak Trailhead, which is located on the west side of Highway 38, across from the Grout Bay Picnic Ground. Take Gray's Peak Trail to Hanna Flat Trail, a 7 mile hike.

The Hanna Flat Trail climbs 4 miles to Hanna Flat Campground (elevation 7,000 feet), where hikers find 88 campsites and potable water.