The southwestern state known for its impressive collection of cliff dwellings, such as those at Cliff Palace, is Colorado.

Cliff Palace is one of the most famous cliff dwellings in the Mesa Verde National Park, located in Colorado. The park is known for its ancient Ancestral Puebloan cliff dwellings, which were built into the sides of cliffs over 800 years ago. Colorado is rich in archaeological sites, and Mesa Verde is one of the best-preserved examples of these ancient structures.