(21) California, Clark Range, Yosemite National Park. On 8 August Tom Opperman (21) left Tuolumne Meadows area, planning to hike to Merced Lake, then to climb Mt. Clark, traverse the east sides of Grey and Red Peaks, hike to Glacier Point, and return to Tuolumne via road on 10 August. Subject failed to return at indicated date, and has not been seen or heard from since.

Source: National Park Service, Yosemite National Park.

Analysis: Should have signed out at Ranger Station. Would have been advised not to go alone and of insufficient time that he had allowed for the trip.