Hey wamsley, so i have one thought regarding the issue of not telling the Navajo what to do with there land.
At least as far as far as emailing the tribal elders, don't tell them what to do.
However, if you believe as I do, that this would be very damaging to the Grand canyon, what would be wrong with simply ASKING, them not to approve this project? Be respectful, but it can't hurt to ask.
It sounds as though this project could be very damaging to the Navajo people, and many of them oppose it, along with neighboring tribes. It is possible that if the Elders decision is swayed by wilderness lovers from around the world, that they may even avoid a $65 million mistake, and a major blow to the Grand canyon on the scale of what our culture has been doing.