Mysterious 1934 Disappearance of Explorer Everett Ruess in Utah Solved With Help of CU-Boulder Researchers The mysterious disappearance of Everett Ruess, a 20-year-old artist, writer and footloose explorer who wandered the Southwest in the early 1930s on a burro and who has become a folk hero to many, has been solved with the help of University of Colorado at Boulder researchers and the National Geographic Society. The short, compelling life of Ruess, who went missing in 1934 after leaving the town of Escalante, Utah, has been the subject of much speculation. His story has spawned two documentary films, as well as plays, books, magazine and newspaper articles and a T-shirt line, and his name now graces an annual art festival in Escalante.