The source says this about the tombstone district: "TOMBSTONE (District):  many area great mines, especially along the Empire-
Contention dike, mineral specimens abundant on all dumps: Argentite, Aurichalcite,
Azurite, Barite, Bornite, Bournonite, Calamine (or Hemimorphite), Cerargyrite,
Chrysocolla (widely distributed), Connellite, Copper (native), Covellite, Cuprite,
Galena (bearing Tellurium), Gold, Hydrozincite (some fluorescent), Jarosite (common),
Plumbojarosite, Pyrite, Pyromorphite (associated with crystals of Wulfenite in outer
layers of oxidized Lead ores), Rosasite, Stromeyerite, Sulfur, Tenorite, Tetrahedrite
(high in Silver), Thaumasite (rare), Vanadates of Copper, Lead & Zinc, Willemite
(fluorescent), Wulfenite (common but not abundant);  In addition to these, the following
mines carry further indicated minerals: (a) Empire Mine: Bromyrite and native Silver;
(b) Ingersol Mine: Famatinite; (c) Lucky Cuss Mine: Alabandite, Alamosite, Hematite
(100 ft. W of the dumps) and Hillebrandite, Queitite; (d) Silver Thread and Sulphuret
Mines: Sphalerite; (e) State of Maine Mine: Embolite (as a major Silver ore); (f)
Tombstone Extension Mine: Galena; (g) Toughnut Mine: Chalcocite, Famatinite,
Bronchantite and Smithsonite; (h) West Side Mine: Hessite and Smithsonite; (I)
West Side Quarry “Roll”: Aurichalcite (pale blue crystal aggregates)."

I don't know if these are active mines or if this is just information collected from the 1800's.  I guess you never know with this source.