High Country News is an excellent publication about the U.S. West. Regarding nonfiction about Wyoming culture, I used to have some that I bought at the literary festival in Casper, but I have passed them all along to other people. Search under Wyoming essays, anthologies, nonfiction, etc. Also, different writer's groups, such as Ucross Ranch, have released collections of their work. John McPhee wrote a three-volume nonfiction series including Rising from the Plain about Wyoming geology. Also there is a good book called Where the Rivers Run North, which has a lot of history. Annie Proulx recently published Red Desert. Some fiction I would recommend include the work of David Romtvedt, the poet laureate of Wyoming; anything by C. J. Box, the mystery writer; The Virginian, a historical novel; and Try, about rodeo types, by Lily Burana (that's of course in addition to Annie Proulx).