The Lake Oswego Preservation Society's History Center & Museum is located in the last remaining Iron Company Worker's Cottage in Lake Oswego. In 1867 the first iron was made on the Pacific coast. The blast furnace stack can be seen nearby as well as other sites on the Oswego Iron Heritage Trail. The cottage is the oldest house in the City that's open to the public. This vernacular style, 700-square foot building may house the smallest museum in Oregon.