A few years ago we went to the Durango Celtic Festival and since we drove through the Navajo Nation to get there, we stopped at the Four Corners monument where the four corners of Arizona, Colorado, New Mexico and Utah meet. Later I found out this wasn’t the actual spot where the borders met. It was a few hundred yards north or something.
One of the signs we saw was warning people not to scatter the ashes of loved ones because it was disrespectful of Navajos to do so. I also imagine if they’d allowed it, there’d be a huge pile of ashes that’d have to get swept up every so often. I could think of better places to have my ashes dispersed if I choose to be cremated. Yes, the four corners are within the boundaries of the Navajo Nation.