Located in a National Historic Landmark District at an elevation of 12,450 feet, this circa 1907 metal processing mill is one of the most scenic in Colorado. Its remote location saved its interior contents from metal salvage programs carried out during World War II. The mill stands as one of a few remaining mills with its original machinery intact during World War II. A scenic 8 mile round trip hike gaining 2100' of elevation up Bridal Veil Basin is required to view this 5 story historic structure. Built in 1910, Lewis Mill was a 60-ton capacity ore concentration mill. On May 6, 2009, the Mill was placed on both the Colorado State Register of Historic Places and the National Register of Historic Places.