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 at Swains Lock, lock 21, Montgomery County Maryland. The lock was also once known as Oak Spring Lock, for a spring in the hillside to the east.
The stone lock house originally looked more similar to others in the area, but the upstream side was removed and extended upon, probably after one of the big floods.
Jesse Swain was lock tender here when the canal closed in 1924. Members of the Swain had worked on the canal from its early construction right up to its 21st century closure.
Cliffs along the Chesapeake and Ohio Canal east of Pennyfields, Montgomery County Maryland
Chesapeake and Ohio Canal lock house at Lock 22, Pennyfield Lock, Montgomery County Maryland.
Pennyfield had a mooring area above the lock, a granary, and lock tender George Pennyfield had a warehouse that washed away in an 1889 flood.
The lock had been raised and altered somewhat with concrete after 1900.
The lock house is a one and a half story shale stone structure with a full basement, and sandstone sills on windows. It was damaged by fire in 1935 but was restored and is open for rental for those going the distance on the canal.
This location was a favorite spot for President Grover Cleveland's bass fishing expeditions.