Travel These 4 Navajo Nation historic sites have reopened. Here’s what to know and how to visit August 16, 2021 Shanti Lerner, Arizona Republic Comments Off on These 4 Navajo Nation historic sites have reopened. Here’s what to know and how to visit The latest on hiking, camping and other activities at Canyon de Chelly, Navajo National Monument, Hubbell Trading Post and Four Corners Monument.