• Historic Shot of Canal Boat on the Canal

    Chesapeake & Ohio Canal

    National Historical Park DC,MD,WV

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  • Towpath Reroute!

    6/14/14- Towpath breach at MM 106, just below Dam #5. Towpath Detour in place (this detour does not leave park property). Please be aware of possible towpath hazards due to heavy rains.

  • Water Pump Handles Temporarily Removed

    Purslane Run, Stickpile, Evitts Creek Hiker-Biker Campgrounds and Paw Paw Campground water pump handles have been removed due to bad water samples. Handles will be installed when good water samples are received.

  • 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.

  • Boat Rides at Great Falls

    Regularly scheduled tour times for the mule-drawn canal boat at Great Falls have changed. In July and August 2014 tours will be offered Saturdays and Sundays at 11:00, 1:30 and 3:00. Please call the Visitor Center for more info: 301-767-3714. More »


Myotis_leibii, Indiana Bat

There are over 1000 known species of bats, just about a fourth of all mammal species. Bats are a vital part of our ecosystem eating many crop damaging insects such as stink beetles and leafhoppers as well as pollinating fruit trees. Nearly 40% of American bat species are in severe decline or already listed as endangered or threatened.

The Indigo Tunnel located on the Western Maryland Rail Trail near Hancock, Maryland is home to eight species of hibernating bats including the Maryland state endangered Eastern small-fotted myotis (Myotis leibii), and the federally endangered Indiana bat (Myotis sodalis).

bat with white nose syndrome

Bat with White Nose Syndrome

White Nose Syndrome

The C&O Canal NHP has worked actively with the Maryland Department of Natural Resources to monitor this site, paying close attention to the threat of White Nose Syndrome (WNS). WNS is caused by a cold-loving fungus that grows on bats when they are hibernating. The fungus found on the muzzles, wings, and exposed skin tissues disrupts the normal hibernating pattern causing bats to arouse too frequently and starve to death.

The Indigo Tunnel was studied in March 2010 and no signs of WNS were found. In order to prevent the possible spread of WNS and protect hibernating bats, the tunnel is closed to the public. Bat gates have been installed at both ends of the tunnel to ensure bat safety.

Did You Know?

Photo Maryland Gold Mine.

There are several gold mines in the Great Falls area. The largest of these is the Maryland Mine located at the intersection of Falls Road and MacArthur Boulevard near Potomac, Maryland. Gold was first discovered here by a Union soldier from Pennsylvania during the Civil War.