The former Thomas Kay Woolen Mill in Salem produced wool from 1889-1962.
It is no longer in the wool production business, but has been designated an American Treasure by the National Park Service.
Today, the site is home to the Mission Mill Museum, which offers a changing gallery of four history-related exhibits each year. The museum is also a popular community gathering spot, with about 275 annual events scheduled on its grounds.
The mill also welcomes hundreds of sheep each spring as part of the Sheep to Shawl Festival‚ which showcases every aspect of the wool industry.