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.
Historic McMahon's Mill along the Big Slackwater section of the Chesapeake and Ohio Canal, Washington County Maryland.
The original mill was built in 1798 on a stream known as the Downy Branch.
Flour, feed, and plaster.
Over the years, the mill has been known as Shanks, Charles, Shaffers, Old Flouring, Galloway's, Cedar Grove, and more. Many mills were associated with the same family names through the Potomac River valley.
The wooden overshot water wheel was replaced by a metal one around 1920, but the mill was taken out of service by 1922.
Historic McMahon's Mill along the Big Slackwater section of the Chesapeake and Ohio Canal, Washington County Maryland.
The original mill was built in 1798 on a stream known as the Downy Branch.
Flour, feed, and plaster.
Over the years, the mill has been known as Shanks, Charles, Shaffers, Old Flouring, Galloway's, Cedar Grove, and more. Many mills were associated with the same family names through the Potomac River valley.
The wooden overshot water wheel was replaced by a metal one around 1920, but the mill was taken out of service by 1922.
How old is what we see now?
The 53rd anniversary was yesterday of the date etched in the paint. 6/23/72
A beautiful spot! The sound of the stream is so calming.
Howell Cave Grotto along the Chesapeake and Ohio Canal at Big Slackwater, Washington County Maryland.
Also known as McMahon's Mill Cave, a large spring flows from it in a cathedral-like overhanging rock formation.