There was basically a trail a lot of robbers followed in the old west. on this trail were 3 notorious hideout areas. What was known as Robbers Roost was located in what is now Canyonland NP. A local newspaper once said"Death would be as certain and swift as if they plunged into the mouth of a volcano" about lawman entering Robbers Roost. The second hideout was in Browns Park, named for the settler Baptiste Brown. It sits on the border of Utah & Colorado neat the Wyoming border. It is near a town called Little Hole, NE of Vernal and East of Manila. This is rough Mountian area, I have been there. Manilla has a rodeo every year. The last one I have on My map is the famous Hole-In-The-Wall. You get to it thru a notch in the great red wall. No posse would venture in there. This is in Wyoming SW of Kaycee and NE of Shoshoni.
I don't know of any in SD, but Deadwood had it's own reputation. I have been there. It is now a colorfull tourest trap. Frank