You can now create your own itineraries to guide your C&O Canal exploration, or you can copy one of ours! Learn more about Itineraries.
Big Slackwater is downstream from McMahon’s Mill. Canal boats once entered the river here as the mules continued walking along the towpath. Learn more.
Big Slackwater is downstream from McMahon’s Mill. Canal boats once entered the river here as the mules continued walking along the towpath. C&O Canal Company engineers chose to utilize the pools behind Dam 4 and Dam 5 rather than dig a canal prism because of rocky cliffs along the river. In 1996, severe flooding caused extensive damage to the towpath, making this section of the historic canal impassible for over 15 years. In the summer of 2010, the National Park Service began reconstructing the missing section of towpath and it was completed in the fall of 2012. Now, the “towpath” is a concrete pathway that hugs the river.
We know that to preserve something, you need to experience it, so we are proud to provide support to the C&O National Historical Park as their official philanthropic partner.
Please visit the National Park Service website for the following information:
For more information and nearby places to stay or grab a bite to eat, please visit our local tourism partners:
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There has been a lapse in appropriations, and a shutdown of the federal government is currently in effect. Much of the C&O Canal National Historical Park remains open to the public, however, the National Park Service is not able to operate as normal. Visitor services, including park visitor centers and other NPS-staffed facilities, will not be available. Inquiries to the National Park Service will not be received or responded to until the shutdown ends.
The C&O Canal Trust’s staff are currently working remotely. Scheduled Trust events and Canal Quarters reservations will continue as scheduled. While a federal government shutdown is in effect, visitors should not expect services typically provided by the National Park Service to be available. All visitors are urged to practice safety in the park and plan ahead. Be a good park steward by recreating responsibly and practicing Leave No Trace principles, respecting cultural and natural resources.
Information regarding the Department of Interior’s Operations in the Absence of Appropriations can be found here: https://www.doi.gov/shutdown.
When federal funding is restored, we look forward to continuing to work with our park partner to ensure the C&O Canal remains beautiful, safe, and welcoming for visitors today and for future generations. Love the Park? Help the Trust! Consider making a donation. Your support directly helps fund beautification, conservation, education, and preservation initiatives in the park.