I have been immersing myself in the Texas Hill Country, into sacred vortexes, Comanche shamanism, Texas history, (which, being a native, I mostly knew, but got some surprises). Since the time setting falls in line with the family history books I was working on before, I already had a lot of information from that - including bits like how to ride sidesaddle, men's and women's fashions, you name it; I've looked into it.
I remember reading a quote from Louis L'Amour, another writer of westerns, "If I describe a spring in the desert, that spring is there, and the water is good to drink." I have taken that to heart.
Ann