Riley’s Blockhouse & Seneca Aqueduct

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13015 Rileys Lock Road
Poolesville, MD 20837 United States Get Directions
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Seneca Quarry Hike with C&O Canal Association

Riley's Blockhouse & Seneca Aqueduct 13015 Rileys Lock Road, Poolesville, MD, United States

Join this C&O Canal Association-sponsored hike to the Stonecutter Mill ruins, then head off trail to visit the quarry where the iconic red Seneca sandstone of the Smithsonian Castle was […]

Nature Walk: Birds

Riley's Blockhouse & Seneca Aqueduct 13015 Rileys Lock Road, Poolesville, MD, United States

Join Kurt Schwarz of the Maryland Ornithological Society to locate and identify migratory songbirds at Riley's Lock on the C&O Canal. Registration is required; visit the C&O Canal Association website for more information.