HENRY MOUNTAINS

segment of the Colorado Plateau, extending for 40 mi (64 km) in a northwest-southeast direction across Garfield County, southern Utah, U.S., east of Escalante. Mt. Ellen, which ascends to 11,615 ft (3,540 m), is the highest point. Named for Joseph Henry (1797-1878), a great American scientist and the first secretary of the Smithsonian Institution, the mountains are well known by geologists as a classic example of laccolith (igneous uplift) mountains. The Glen Canyon National Recreation Area, located near the Colorado River, embraces part of the Henry range.