• Historic Shot of Canal Boat on the Canal

    Chesapeake & Ohio Canal

    National Historical Park DC,MD,WV

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  • NEW Overnight parking system

    Before parking a vehicle overnight in any Canal Parking area, visitors must register their vehicle through the new online registration system. Print your reciept and place on your dashboard. If unable to print, please visit the nearest visitor center. More »

  • Water Pump Handles Temporarily Removed

    Bald Eagle Island and Evitts Creek Hiker-Biker Campground water pumps handle have been removed due to bad water samples. Handles will be reinstalled when good water samples are received.

  • Boat Tours at Great Falls

    Due to low water levels in the Great Falls area, call the Great Falls Tavern Visitor Center (301-767-3714) in advance of your trip to confirm the mule-drawn boat tour schedule.

  • Parking Lot Closure

    CSX is now beginning a phase of their bridge project that requires the closure of the Lock 74 parking lot for approximatly 18 months. Access to visitor parking near Lock 75 is now re-opened with a gravel parking lot at the site.

Environmental Factors

The C&O Canal National Historical Park is in a constantly shifting, dynamic state. Weather and climate change, geologic processes, flooding and human-caused factors such as air and water pollution are only a few of the agents of change that have helped to carve the Potomac River Valley. The park provides a "living laboratory" that helps us better understand how these environmental factors have shaped park landscapes and ecosystems. Park staff carefully monitor changes in environmental factors, and can often alert managers to threats to the resources in time to preserve those resources.

Did You Know?

Photo of park rangers interpreting building the canal.

Canal historians estimate approximately 35,000 laborers helped dig the canal as well as build aqueducts, culverts, locks, lock houses, etc. It took 22 years to build the canal from Georgetown, DC to Cumberland, MD. Much of the workforce were immigrants from Ireland and western Europe. More...