Elaine Castle is a 7,431-foot-elevation (2,265 meter) summit located in the Grand Canyon, in Coconino County of northern Arizona, US. It is situated three miles north-northwest of King Arthur Castle near the head of Shinumo Creek, and immediately southwest of Lancelot Point. Topographic relief is significant as it rises 2,800 feet (850 meters) above Merlin Abyss in one mile. According to the Köppen climate classification system, Elaine Castle is located in a cold semi-arid climate zone.