The Castle Dome turquoise mine can be found in the Sleeping Beauty mountains of southeastern, AZ. The mine is located just over the hill from the Sleeping Beauty turquoise deposits. The property was mined-out in the early 1970's and the diggings were covered and reclaimed. Most of the turquoise produced by the mine was thin vein material and dime size nuggets. Castle Dome turquoise is, on average, of a better color and quality than its sister mine.