The Feb. 27 letter from the chairman of the Colorado River Indian Tribes was pleading and tough. It asked President Obama to slow the federal government's "frantic pursuit" of massive solar energy projects in the Mojave Desert because of possible damage to Native American cultural resources.

The Obama administration didn't respond. But four days after Chairman Eldred Enas sent the letter, the Indians say they found an answer, delivered by spirits of the desert.

Howling winds uncovered a human tooth and a handful of burned bone fragments the size of quarters on a sand dune in the shadow of new solar power transmission towers. Indians say the discovery is evidence of a Native American cremation site not detected in Southern California Edison's archaeological survey before the towers were built....