Tombstone Mining Receives Final Permit to Begin Full Construction leading to Gold Production at Proven Harquahala Mine
PHOENIX, April 15, 2020 (GLOBE NEWSWIRE) -- Tombstone Exploration Corporation (OTCQB:TMBXF) (“Tombstone”, “Tombstone Exploration”, or the “Company”), a fully reporting U.S. based mining company, in partnership with Goldrock Resources Inc. (together, the “ …