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.
Ruins of the Seneca Stone Cutting Mill adjacent to the quarries in Seneca, Montgomery County, Maryland.
This mill operated from 1837 until the early 1900s. Area quarries provided cut stone for Chesapeake and Ohio Canal locks 9, 11, 15 through 27, and 30, as well as for adjacent lockhouses and the nearby Seneca Aqueduct.
Quarry stone was also brought in from other regional quarries to be cut at this location. A turbine was fed from a raceway from the canal just a bit to the west, which then flowed right through the center of this building.
A view of the wide water section of the Chesapeake and Ohio Canal at Seneca, Maryland, the area where the Seneca stone quarries existed. This area was once full of wharfs for loading.