We know that Tombstone AZ was the site of the battle of the OK Corral. We also know it to be the site of Boot Hill. But as I was walking through the streets of the town and looking in the various shop windows, I came across this display.

Of wizards and dragons.

So I had no idea Tombstone was, in ancient times, Mordor. And aeons before that, it was the lava planet on Level 7 of the ROTSith Game. That explains the heat, still able to be felt today.