My interest in Tombstone is the mines and the geology. So, if you are looking for information on wild west history and the OK Corral shootout, you will have to go elsewhere.
Since I focus on the mines, I should emphasize right off that all of the mines are on private property and owners take a very dim view of unauthorized access. There is an excellent mine tour with unique options for advanced tours that many people are unaware of.
Tom's Geology Info / tom@mmto.org