The main campground sits in a forested area close to the dam end of the lake. May 25, 2012 by Matt ThomasThe main campground sits in a forested area close to the dam end of the lake. Mancos State Park About Matt Thomas Matt is an avid writer and explorer, who loves to showcase his home state of Colorado. His favorite place to be is right here in the Centennial State. Previous Post:The main campground sits in a forested area close to the dam end of the lake.