The San Juan Basin is a geological formation located in northwestern New Mexico and southwestern Colorado. It is known for its rich deposits of fossil fuels, particularly natural gas and coal. The basin is part of the larger Colorado Plateau and features a variety of landscapes, including mesas, canyons, and valleys. This region has significant historical and cultural importance, as it is home to several Native American tribes, including the Navajo Nation. The basin's natural resources have led to extensive energy development, impacting both the local economy and the environment.