Lynn & I have traveled the Southwest several times and many times have passed through reservations.
One trip a few years ago we found ourselves in a spot in Arizona along a Navajo reservation in search of dinosaur tracks
They of course are petrified over time. At one stop we met Wanda who showed us around and just before we left she gifted me with a piece of
petrified wood from back in the days of the dinosaurs.
I cherish this gift and our memories of how kind the native americans have always been on our trips.