The appreciation of the Chimney Rock region goes back more than 1,000 years. Here in southwestern Colorado, the Ancestral Puebloans inhabited the northern San Juan River Basin as an outlier community of Chaco Canyon. Its function and use has created much conjecture. The site was abandoned by the early 1100s for reasons that some speculate were related to drought, resource depletion, warfare, migration, or a combination of these factors. Over the course of its recorded history, archaeologists, astronomers, regional historians, and visitors have celebrated the rocks, ruins, and landscape that...