This thread may be the push I needed. I'd intended to try the books when I first started watching the series, but it didn't happen. In my experience, about 85% or 90% of the time, the written source material is as good as or, more often, better than the TV series or movie.

I also admire how the actor who plays Longmire gives no hint of his being from Australia. How good is that American accents, to fool the native speakers?