Firstly, it's worth mentioning that I've never been fond of westerns. It probably stems from the slow-paced nature of them and when I was a child I would often see western television shows and movies playing while I'm sitting inside during the hot-ass Australian summer weather, I couldn't bare to think of these people wearing all this heavy clothing while they're out in the sand and sun so much.
Anyhoo, I didn't have as much of a problem with all of that while watching this movie. However, I still found the slow pace to be an issue. There was well over an hour during this movie where it's pretty much just walking and talking, offering some development on the characters, which I neither liked nor disliked, and while there was some suspense being built throughout, I felt it was rather minimal. While I mostly put this aspect in the negative spectrum, it's also a positive as it increased the surprise factor for some of the attacks that occur later in the movie.
The last half hour is rather exciting with surprise attacks, gore and finally some focus put on these maniacal cavemen. Despite the enjoyable latter parts of the movie, I didn't find it to be great enough to make up for the long ride that it took to get to that point. Bone Tomahawk is a decent watch, but I'd probably struggle to get through another long ride just to experience that final half hour again.