Druid Arch is a natural sandstone arch in the Needles District of Canyonlands National Park in southeastern Utah, standing at the head of Elephant Canyon. Formed in Cedar Mesa Sandstone from an eroded fin created by coastal sand dunes about 245 to 286 million years ago in the early Permian, it rises about 150 feet tall, with the top of the formation roughly 450 feet above the canyon floor. Its two keyhole-shaped openings, about 85 feet high and 20 feet wide, give it an unusual profile. Named for a supposed resemblance to Stonehenge, it became an official geographic name in 1963 and is a well-known hiking destination.