Colorado's Largest County by Area

Moffat County is the largest county in Colorado by land area, covering approximately 4,795 square miles (12,419 km²). It is located in the northwestern corner of the state, bordering Utah to the west and Wyoming to the north.

The county is sparsely populated (~13,000 residents), with the town of Craig as the county seat and largest community. Its landscape is dominated by high desert, sagebrush steppe, and the canyons of the Yampa and Green Rivers. Dinosaur National Monument extends into its eastern edge. The economy relies on energy (coal, natural gas), ranching, and tourism.