From the classifieds of the March/April 2009 AWP Chronicle: "Great Western Fiction is seeking submissions of Western fiction set in the American Old West before 1914. . . No language. No Sex."
Not everyone misses Al Swearengen.
The ad is more complete than this, with a promise of fuller guidelines at the website, but it looks like this venture has already folded. They offered $50 for short stories, $500 for novels.