Access to Peirce Mill is limited
Due to flooding access to Peirce Mill is limited to the main level. National Park Service staff will continue to be available to answer questions about the mill during normal operating hours. The lower level will be closed until cleaned.
You can make a difference at Rock Creek Park.
Rock Creek Park is visited by 2 million visitors every year! Volunteers are needed to assist with Visitor Services, Bike Patrol and Special Events.
Current Volunteer Opportunities
Did You Know?
The most productive time for Peirce Mill was during the Civil War. During this time, Peirce Mill and all the other millworks along Rock Creek were processing grains to supply flour and meal for Union soldiers stationed in Washington, DC and abroad.