Peirce Mill, built in the 1820s, is the last operational grist mill along Rock Creek. The grounds are open according to general park hours.
Peirce Mill is primarily first-come, first-served. Use the availability view to gauge how busy it is before you go.
See the map for Peirce Mill's exact location and directions.
Pick your dates on the availability calendar, then reserve through the official booking link. You can also set an alert and we'll notify you if a sold-out date opens up.