Yep, you're right. The lead actress is Lily Blackstone, taking the part of Mollie Burkhart. She was born in Montana and raised on the Blackfeet Reservation, but she's the only one who appears to be indigenous. However, to be fair, it is more a story of the morally corrupt white, wealthy men and a government intent on gain rather than honor, hence the cast. Let me know what you think of the book!