I'm not Native American, but I read this book as part of my curriculum in high school or junior high back when I was in the states.
I forgot the name of the book and its been a long time and I want to recommend it to a friend. It was about a child growing up with his grandparents and is written in the narrative. The setting is the USA and I think they're living in the outskirts of town, near a creek/river and a mountain. The words "creek," "river," or "mountain" is in the title, I THINK :$.
There's one line I remember from the book (sorry if I mess it up, bad memory):
"Grandma said you can't love someone if you don't understand them."
Or maybe it was "Grandpa said" :$. But that's the jist of the line; its toward the end of the book :S.