Tombstone Exploration Corporation announced in combination with Goldrock Resources Inc. and the Bonanza Mining Company that the leach process has commenced. The leaching has commenced at the Bonanza Harquahala Mine which started on June 3, 2021 when the pH levels increased to allow for safe sustained leaching. Approximately 35,000 tons of rock have been placed on the leach pad with the entire area under leach. Carbon has been placed in all four carbon columns and is collecting gold & silver from solution. Bonanza expects to ship its first carbon in approximately two weeks depending on how fast the rock leaches and how quickly the carbon loads. The Bonanza Mine property includes the Harquahala and Golden Eagle mines, located approximately eight miles south of Salome, Arizona. The project totals 2,656 acres and has significant underground workings. Once leaching has started, periodic delivery of the carbon to the designated gold processing facility is expected and have fully committed processing and gold refiners in place.