The Willamette Heritage Center at the Mill preserves slices of valley history by word and deed, keeping up 14 historic structures and filling them with historical tours and living history displays. The Jason Lee house represents the oldest building on campus, built in 1841. The structure also boasts the title of oldest surviving wooden frame house in the Pacific Northwest, and its interior sports the period appropriate furnishings right down to an iron stove and a snoring, bonneted grandmother. Nearby stands the Thomas Kay Woolen Mill, and piece of the Industrial Revolution that has survived since 1896, earning recognition as an American Treasure by the National Park Service. Workers keep the buildings clean and sound for tours and rentals, while actors keep the ground vibrant with living historical portrayals.