Well, I'm not sure I actually recommend this (since I'm not enjoying it all that much) but by assignment at uni I'm reading Ceremony by Leslie Marmon Silko. She's native american, the book came out in the late seventies, and you'll have probably already heard of it as it's considered a 'great classic'. The writing is interesting, especially the parts where it delves more into ancient culture, but I'm halfway through and I haven't been able to make a connection with the main character (who's a deeply traumatized vietnam vet). All and all, if it weren't an assignment, I don't think I'd finish it.
(other books of the course-work, which deals with minority american writers, are Their eyes were watching god by Zora Neale Hurston, and The house on Mango street by Sandra Cisneros)