The “Lost Mine of the Padres” or the “Lost Mine of the Jesuits” could be in any one of several Southwestern states, or down in Old Mexico. There are several treasure yarns with those names. “Lost Mines of the Estrellas,” however, narrows it down to the Estrella Range in Pinal County, Arizona. More specifically, to “Montezuma’s Head Mountain.”
Probert’s Lost Mines and Buried Treasures of the West (1977) has several entries about this particular legend. One of them is Western Treasures, Lost & Found by “Jesse Ed Rascoe” [Ed Bartholomew] (1961). He links the “Lost Mine of the Stars” to Milton Rose. His Some Western Treasure Trails (1964) has the story of the “Spanish Bullion Plant” that owes a great deal (although without a citation) to John D. Mitchell’s “Don Joaquin and His Gold Mine” (Desert Magazine, May 1943, Vol. 6 No. 7 – Probert states it was first published in the Arizona Mining Journal).
Ray Howland wrote “The Lost Mine of the Stars” (Arizona Highways, February 1935, Vol. 11 No. 2) – a very personal account of his hunt for and discovery of this mine. Interestingly, he notes the same “rock house” described by Mitchell.
There is also a short account of the hidden gold bars in Lost Mines and Hidden Tresure by “Leland Lovelace” (1956).
Although I do not have a copy of Golden Empires, the evidence strongly points to it being about the Montezuma’s Head Mountain in the Estrella Range “Lost Mine of the Stars” and the gold bar plant associated with it.
Good luck to all,
The Old Bookaroo