Rock Creek and Potomac Parkway Lane Closures and Construction Update Summer 2014
Construction work on Rock Creek and Potomac Parkway at Waterside Drive continues. There will be lane closures between rush hours to accommodate work on the roadway, multi-use trail and infrastructure. More »
Fees & Reservations
All planetarium programs, environmental education programs, and ranger-led programs (except Horseback Tours) are free.
Other Fee Information
For information about permits and fees, please visit the permits page. (This includes permits for picnic groves and athletic fields that require reservations, weddings, research and special park use.)
Did You Know?
Peirce Mill was built in the early 1820's by Isaac Peirce. It operated commercially until the main shaft broke in 1897.