Slumgullion Earthflow National Natural Landmark

The Slumgullion Earthflow National Natural Landmark, located in Hinsdale County, Colorado, is an exceptional geological feature formed by an impressive mass movement of earth. This earthflow is estimated to have started approximately 700 years ago, with a significant section still slowly moving at a rate of about 7 meters per year. Comprising a colorful mix of clay, rock, and rich mineral deposits, the area presents a stark and captivating landscape. The earthflow originated from the side of Mesa Seco (Dry Mesa), and its path extends nearly 6 miles down the mountain, ultimately damming the Lake Fork of the Gunnison River and creating the picturesque Lake San Cristobal – the second largest natural lake in Colorado. The site serves as a living laboratory for geologists studying earth processes and features interpretive signs for visitors to understand its significance. Outdoor enthusiasts can enjoy hiking opportunities in the surrounding forests, while photographers are drawn to the area for its vivid colors and unique topography. The Slumgullion Earthflow's peculiar and dynamic nature makes it a compelling destination for nature lovers and science enthusiasts alike.