On Owl Creek Pass in the Cimarron Mountains near Ridgway, Colorado.
This is the field where the climactic scene of the 1969 John Wayne movie True Grit was filmed. Robert Duvall and his gang lined up here on horse back and John Wayne charged, waving his rifle in the air as he cocked it, from directly behind me.
Interestingly, in the movie, Glen Campbell and Kim Darby were watching from a hill above to the left.
Campbell made his heroic rifle shot from a hill the doesn’t exist. It’s just a dirt parking lot along road that takes you to Silver Jack reservoir.
A large portion of that movie was filmed in Colorado’s San Juan Mountains near Ridgway/Ouray
Here’s a link to the scene on YouTube.