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Dam 4 C&O – Antietam Aqueduct loop from Brunswick

Dam 4 C&O – Antietam Aqueduct loop from Brunswick

Hard

3.2

(28)

riders

Dam 4 C&O – Antietam Aqueduct loop from Brunswick

07:49

95.9km

290m

Gravel riding

Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels. The starting point of the route is accessible with public transport.

Last updated: August 13, 2026

Tips

Your route passes through protected areas

Please check local regulations for:

Chesapeake and Ohio Canal National Historical Park

Waypoints

Start point

Train Station

Get Directions

859 m

Chesapeake and Ohio Canal Trail

Highlight (Segment) • Cycleway

The Chesapeake and Ohio Canal Trail is one of the East Coast's premier bicycle pathways. It follows the abandoned Chesapeake and Ohio Canal and runs from Washington, DC, to Cumberland, Maryland.

Tip by

9.44 km

Staircase and bridge from trail to Harper's Ferry

Highlight • Bridge

to get from trail to Harper's Ferry, you have to go up these stairs. There are bike racks at the base, or you carry your bike up with you

Tip by

48.0 km

Dam No. 4

Highlight • Monument

Dam No. 4 is located around mile 84 of the C&O Canal Towpath. Built in 1856, this dam was crucial for maintaining water levels for canal operations and remains an impressive structure along the river. The area around the dam is known for its scenic views and wildlife, making it a nice spot to pause before continuing on your ride.

Tip by

48.0 km

Dam 4 C&O

Highlight • Monument

Great spot to see the Dam.

Tip by

72.3 km

Antietam Aqueduct

Highlight • Bridge

The Antietam Aqueduct, located at mile 69.4 of the C&O Canal Towpath, is a three-arch stone aqueduct that once carried the canal over Antietam Creek. Built in 1834, it is constructed from limestone quarried nearby and remains one of the best-preserved aqueducts along the canal. During the Civil War, it was near the site of Confederate troop movements before and after the Battle of Antietam in 1862. Though it suffered some damage over the years, it has been fully restored and now serves as a scenic and historic stop along the towpath, offering great river views and picnic spots.

Tip by

85.0 km

Chesapeake & Ohio Canal National Historical Park Lock 34

Highlight • Historical Site

86.5 km

Harpers Ferry Tunnel and Railroad Bridges

Highlight • Bridge

From here, you can look up at the West Portal of the Harpers Ferry Tunnel. The tunnel is part of the B & O Railroad Potomac River Crossing, which is on the National Register of Historic Places for its significance in commerce, engineering, industry, invention, and transportation.

Tip by

87.3 km