Volunteering to help the park: A work crew installs a bench near Great Falls in 2016.
Supporting park projects: Catoctin Aqueduct after collapse in 1973
Supporting park projects: Catoctin Aqueduct after restoration effort in 2011
Exploring history and nature: Sideling Hill Creek Aqueduct as viewed from the Western Maryland Rail Trail.
Protecting the canal since 1954: The association opposes Georgetown University’s plan to build a large boathouse in the park
Protecting the canal since 1954: The association opposes Georgetown University’s plan to build a large boathouse in the park
Exploring history and nature: Hikers gather at Fifteen Mile Creek Aqueduct in 2018.
Protecting the canal since 1954: Justice Douglas and eight others pause during their famous hike, which publicized the canal in 1954
Exploring history and nature: Ranger provides interpretation for hikers at Seneca Stone Cutting Mill in 2020.
Exploring history and nature: Hikers marvel at a large specimen during a tree identification walk in 2012
Volunteering to help the park: Association volunteer attaches plaque to newly installed bench in 2018.
Exploring history and nature: Association members participate in the last day of the 2009 Thru Hike at Great Falls
Volunteering to help the park: Association member helps install an identification sign at Landers in 2011
Exploring history and nature: Hikers gather at Dam 5 in 2019.
Protecting the canal since 1954: Justice Douglas and others rally against replacing the canal with a highway.
Volunteering to help the park: Association members repaint picnic tables at Swains Lock
Volunteering to help the park: Association volunteers assemble picnic table in 2018.
Chesapeake and Ohio Canal lock 27, Spinks Ferry, Montgomery County, Maryland.
This lock was built with Seneca Red sandstone in 1831 and was sometimes known as Campbell's lock or "Camels Lock".
The stone to construct this lock was boated some 5 miles down the Potomac River from Point of Rocks to this location, as well as from Lee's quarry near Seneca, and from ledges 2 and 1/2 mi north of this location.
The lock was extended on the upper end in 1881-82 with wooden cribs and planking in order to allow for the passage of two boats instead of one.
The stone lock house remains on the towpath side.
Scheduled Closure:
The McCoys Ferry Road Tunnel (mile 108.5) is scheduled to be closed beginning June 29. This closure is expected to last several weeks.
The towpath will remain open for pedestrians and cyclists throughout the project.
For more information on the project and park closures, visit our project webpage at go.nps.gov/threetunnels
NPS Photo from the inside of the McCoys Ferry Tunnel.
Today’s picnic at Fort Frederick is under a shelter, so it’s still on. We’ll have games to play. And the light rain is supposed to gone by mid afternoon
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