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 19, Montgomery County, Maryland. Locks 15 through 20 are known as the Six Locks area. The packet boat. Charles Fenton Mercer and lock 20 are ahead.
This lock is made of Seneca Red sandstone that was brought from upstream, although some say there are stones borrowed from older historic structures in the composition, because there is a date stone in a wall reading May 24 1817.
Lock had a lift of 9 ft, a foot higher than normal on this canal.
It was originally intended that the lock tender at Lock 20 would tend both 20 and 19. Sometime after 1875, a separate log structure was erected to serve the individual lock tender for lock 19.
Lock 18 on the Chesapeake and Ohio Canal, Montgomery County Maryland.
Locks 15 through 20 were known as Six Locks. There was a standard stone lock house at this location built in 1830, but it sadly burned down in 1930 and only some stone ruins remain.
This is a unique area on the canal because the foot of Lock 18 was the beginning of a large channel on the Potomac River from the Great Falls.
The canal made use of this channel, and was constructed in it from this point down to the area of Lock 15. The area was very flood prone.
Olmsted Island Bridges lead from the Chesapeake and Ohio Canal towpath out to viewing areas of the Great Falls of the Potomac River, Montgomery County, Maryland