During the White House Tribal Nations Summit, held Nov. 15-16, President Joe Biden announced new steps to protect Chaco Canyon, which has a rich tribal and cultural legacy in northwestern New Mexico, although the Navajo Nation Council expressed disappointment.During the White House Tribal Nations Summit, held Nov. 15-16, President Joe Biden announced new steps to protect Chaco Canyon, which has a rich tribal and cultural legacy in northwestern New Mexico, although the Navajo Nation Council expressed disappointment.