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Big Slackwater View – Big Slackwater loop from Antietam National Battlefield

Routes

Bike touring routes & trails

United States

Maryland

Washington County

Big Slackwater View – Big Slackwater loop from Antietam National Battlefield

Hard

3.1

(18)

riders

Big Slackwater View – Big Slackwater loop from Antietam National Battlefield

09:43

114km

470m

Cycling

Hard bike ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels. The starting point of the route is right next to a parking lot.

Last updated: May 27, 2026

Tips

Your route passes through protected areas

Please check local regulations for:

Chesapeake and Ohio Canal National Historical Park

Waypoints

Start point

Parking

Get Directions

41.7 km

Big Slackwater View

Highlight • Trail

Big Slackwater is a deep, smooth area of the C&O canal. It is the place that canal boats used to be launched into the canal.

After a flood destroyed the …

Tip by

42.5 km

Potomac River Trail

Highlight • Trail

43.3 km

Big Slackwater

Highlight • Cycleway

Ride in the morning or weekday, if possible. can get busy on weekends.

Tip by

47.5 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 …

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71.7 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 …

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84.5 km

Chesapeake & Ohio Canal National Historical Park Lock 34

Highlight • Historical Site

86.0 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 …

Tip by

86.7 km

View of Potomac River Rapids (C&O Canal Towpath)

Highlight • Viewpoint

One of my favorite rides! The trail is well maintained and smooth. So many spots to rest and take breathtaking pics

Tip by

114 km

End point

Parking

Way Types & Surfaces

Way Types

89.3 km

14.0 km

4.21 km

4.07 km

2.35 km

Surfaces

85.1 km

12.9 km

8.40 km

6.66 km

731 m

Elevation

Nothing selected – click and drag below to see the stats for a specific part of the route.

Highest point (150 m)

Lowest point (70 m)

Weather

Today

Monday 1 June

26°C

8°C

0 %

Additional weather tips

Max wind speed: 18.0 km/h

to get more detailed weather forecasts along your route

Our route recommendations are based on thousands of hikes, rides, and runs completed by other people on komoot.

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Big Slackwater View – Big Slackwater loop from Antietam National Battlefield

Big Slackwater View

Potomac River Trail

Big Slackwater

Dam No. 4

Antietam Aqueduct

Chesapeake & Ohio Canal National Historical Park Lock 34

Harpers Ferry Tunnel and Railroad Bridges

View of Potomac River Rapids (C&O Canal Towpath)

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