i went to a haunted house that had a old western theme and its name was tombstone... i really liked the name, but if you want to do something more original i would think of the things around you for insperation (the road you live on, the town you live in, your last name... ect.)
I also do a Western Themed Haunt.Its called Vulture Hill.
I found it on a map of Arizona,its a real place with a working mine.
Grab your map and start cruising, there are lots of places,lakes, streams, mountains,ect with great names...
Lost Dutchman..Superstition Mts....Apache Jct...Skull Valley...Black Rock.... BadWater...... Death Valley......
Mount Diablo......thats just off the top of my head.
Dead Turkey Gulch
I like the idea that Wyatt had about checking out old maps. Just see if you can put a twist on anything you find. I LOVE the idea about a legend of a haunted mine...
Well, I have decided to go with local influence for the name.
Leaning toward "Cavalry Creek Cemetery". About 12 miles north of here is 10th Cavalry Creek. It's where the 10th Cav. was slaughtered by Commanches and burried, horses and all, in a mass unmarked grave.