Harry Langley was an architect of the National Park Service. He was born in England. He retired in 1957. A number of his works are listed on the U.S. National Register of Historic Places. Works include: * Canyon Overlook Trail, across hwy. from parking area at E end of Zion-Mt. Carmel Tunnel to a point directly above the Great Arch of Zion, Springdale, Utah (Langley, Harry), NRHP-listed * Emerald Pools Trail, foot bridge across hwy. from Utah Parks Lodge proceeding W to the Lower Emerald Pool, Springdale, Utah (Langley, Harry), NRHP-listed * Grotto Camping Ground North Comfort Station, Grotto Picnic Area near Grotto Residence E of Scenic Dr., Springdale, Utah (Langley, Harry), NRHP-listed * Oak Creek Irrigation Canal, W side of the N Fork of Virgin River 1/8 mi. N of Virgin River Bridg