Tombstone, Arizona, Photographed for the Farm Security Administration in 1940
Fifth Street between Allen and Fremont, looking north, photographed by Russell Lee in May 1940. The gunfight happened a few doors along Fremont Street in 1881; by the time this was taken the silver was long gone and the town was living on the story.
The fight lasted about thirty seconds and took place in a vacant lot near the O.K. Corral rather than in it. Three men died. What made it famous was everything afterwards: the hearing that followed, the vendetta ride, decades of contested memoirs, and finally Hollywood, which needed a clean confrontation between law and outlawry and found one here by leaving out the mining politics, the county-versus-town rivalry and the question of who was deputised by whom. The photograph is in the Library of Congress. See the Earp brothers and the gunfight at the O.K. Corral.
Public domain — source (Wikimedia Commons). Free to reuse under the stated licence.