Gray lived in North Brookfield, Massachusetts at the time of his disappearance. He traveled to Idaho in September 2008 for an extended elk hunting trip.

Maria Estrada became separated from her 64-year-old male hiking companion in a section of the Mojave National Preserve about 40 miles northwest of Needles. Estrada and her companion separated at a fork in the trail to look for their vehicle, which they both thought was located in different directions. When Estrada did not return as promised, her companion began searching on his own but waited until the following day to report her missing.

Burney purchased a red 1987 Toyota Tercel on June 29, 2007; he planned to drive to Georgia to meet his two daughters. He was last seen at the Jet-Pep gas station and convenience store on Highway 157 in Battleground, Alabama that day. He has never been heard from again.

Kirchner was last seen in Coconino County, Arizona in early April 2007. He worked as a physicist back in Germany and had visited the United States many times before. He was hiking a remote section of the Navajo Reservation. He’s an experienced hiker who was in good physical condition and hiked extensively in the Colorado Plateau area.

Ficery was last seen on June 15, 2005, while hiking alone near the Hetch Hetchy Reservoir in Yosemite National Park, California. He had gone on a trail that goes around the north end of the reservoir, then he changed his mind and headed up to the Pacific Crest Trail. Ficery has never been heard from again. His family became concerned when he did not return by June 19, when his wilderness permit expired. On June 21, they called the park service and a search was launched.

Lynch lived in Newburgh, Indiana at the time of his disappearance and was visiting Hawaii. He went hiking and taking pictures in Hawaii Volcanoes National Park at the end of of Chain of Craters Road in Hawaii National Park, Hawaii on June 6, 2003, and never returned.

Schmidt resided in Avon, Indiana in 2002. In September 2002 she traveled to Lost Valley Guest Ranch in Colorado with her husband, an anesthesiologist, to accompany him while he attended a medical conference.

Justin was last seen in Kaibab National Forest in Arizona on June 29, 2001. He and some older friends had gone into to an area a few miles south of Grand Canyon National Park and five miles west of Moqui Lodge. Authorities believe he had been partying and was under the influence of drugs, possibly methamphetamine.

Burke was a resident of Rothfamham, Dublin, Ireland in 2000. He traveled to San Francisco, California for a two-week vacation in April 2000. Burke reserved a hotel room near Yosemite National Park from April 4 through April 6. His family said he is adventurous and an experienced hiker.

Reece was a vegetation research intern for the United States Geological Survey’s (USGS) Biological Resources Division in Hawaii’s Mauna Loa area. He resided in Hawaii Volcanoes National Park near Hilo and worked on the Palila restoration project in late 1999.

A 69-year-old Orinda man on a quest to climb the highest peak in every California county has been missing on Mount Shasta since Saturday and is the subject of an intensive mountainside search.

Aujay went for a day hike in the Devil’s Punchbowl area of the Angeles National Forest on June 11, 1998. He never returned. The Devil’s Punchbowl is a remote park on the north slope of the San Gabriel Mountains.

Miller was last seen leaving for a two-and-a-half-day hiking trip in Sedona, Arizona on May 19, 1998. He is an experienced hiker and was employed by the Sedona Forest Service at the time he went missing. Miller never returned from his trip and has not been seen again. He is believed to have become lost or injured in the area, possibly by falling on slippery terrain, but his body has never been found.

Holverson was last seen at Table Rock Campground in the Targhee National Forest in Madison County, Idaho on April 17, 1998. He was camping with eight friends, including one adult and seven other teenagers. He had left his Chevrolet pickup truck at a friend’s home.

Amy departed from the Lander, Wyoming apartment she shared with her husband of one year, Steve Bechtel, at approximately 9:30 a.m. on July 24, 1997 to run errands for the house they had just purchased and were going to move into.

Garman was last seen at a party in the Mark Twain National Forest off H Highway near Chadwick, Missouri on September 24, 1996. He and a female acquaintance from Arkansas were visiting friends in the area and joined the party, which had about fifteen guests and lasted several days.

Cornelia was vacationing with her son, Max Meyer, her boyfriend, 34-year-old Egbert Rimkus, and Rimkus’s son, Georg Weber, in July 1996. Photographs and vital statistics for Max are unavailable. A photo of Rimkus is posted below this case summary. They were all from Germany and were vacationing in California in the United States. They were last known to be at Death Valley in Inyo County, California. They bought a booklet at the Furnace Creek Visitors Center; the receipt for the transaction was dated July 22, 1996.

Missing Person left her sister's residence in Spanaway, WA after cutting her own throat. She was later involved in a single car accident at Mount Rainier National Park and had to be towed from a ditch.

7-year-old, Corey Fay, was a student at the Jesuit High School in Beaverton, Oregon. On 23 November 1991, he agreed to go elk hunting with a friend of his Dad’s Mark Maupin and probably Mark’s son, in the region west of the Tygh Valley, on the fringe of the Badger Creek Wilderness in Oregon. Corey’s father, the owner of the Northwest investment cars showroom, decided not to accompany them on the trip that day. He would never be seen alive again.

Keith Reinhard was working as a sports reporter at the Daily Herald in Chicago in 1988 when he announced he’d be taking a 90-day sabbatical.