recommended gear for Durango area?

My father is retiring soon and moving from Houston to Durango. He
doesn't fish right now but has expressed an interest in taking some
lessons up there after the move.

As a retirement gift, our family is considering getting him a custom
built fly rod. Unfortunately, we know very little about the area and the
tackle requirements.

What sort of specs should I have in mind for a good quality beginner's
rod for that area?

Thanks,

Mark