Knox's Headquarters State Historic Site

For most of the 18th and into the 19th century, the Ellison family had important commercial dealings in milling and trade. From their mill, flour was shipped down the Hudson River to New York City and the West Indies. At present, remains of the mill, with traces of the underground raceway may be visited. Explore how the Ellisons and other families of the mid-Hudson Valley lived 200 years ago. The historic site is open Memorial Day weekend to Labor Day from Wednesday to Sunday. Wednesday to Saturday tours are held on the hour from 10:00 am to 4:00 pm. On Sundays, tours are held on the hour from 1:00 pm to 4:00 pm. Tour, school and camp groups are welcome by advance reservation only. Dates, times, hours of operations and admission fees are subject to change.