Mystery Graves in the Superstition Mountains. The Lost Dutchman's Gold Mine is a legendary gold mine in the Superstition Mountains of Arizona. The mine has never been found. Legend of the mineThe mine is said to be located near Apache Junction, east of Phoenix.The story goes that Jacob Waltz, a German immigrant, discovered a rich gold vein in the Superstition Mountains. The Peralta family of northern Mexico are also said to have developed rich gold mines in the Superstitions in the 1840s #tombst