Walter Reinhard, 66, of Oro Valley, Arizona, was last seen September 19, 2002, after checking into a hotel near Yosemite National Park and is believed to have begun a solo hike from the White Wolf Trailhead. He was described wearing a gray felt Alpine hat, leather hiking boots, and carrying a large fanny pack. His family reported him missing on September 29 when he did not return, and rangers found his vehicle abandoned at the White Wolf Trailhead on September 30, 2002.

Reinhard was an avid hiker but not a frequent Yosemite visitor and was thought to be on a day hike. Extensive search efforts found no trace of him; the park’s remote, rugged terrain has hampered searches and left the case unsolved. Rangers have asked anyone who was in the area on September 19, 2002, to come forward with information.