Slim,
I am currently in the middle of that one. Covers a whole lot of how the hide outs were dicovered. Brown's Hole, Robbers' Roost and Hole In the Wall are 3 different locations. I did not know that until I started reading this book.
It also covers the early starts of Butch. It has been very intersting and informative so far. Alot if the information comes from the writer interviewing locals that had first hand knowledge of the area and characters.
Pretty good read so far.