Hillerman was one of my Dad's favorites. I haven't read any yet, but plan to someday.
They are all good reads, having lived and worked there, it's kinda like old home week when I read one. Good Stories too, even a couple that featured the Grand Canyon and Lake Powell. Grab a couple for your next TDY...
Hillerman's books are really good! You'll probably like them because you're likely to recognize some of the locations, if you're familiar with the Four Corners area.