Big Slackwater View – Big Slackwater loop from Antietam National Battlefield

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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: August 23, 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 …

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42.5 km

Big Slackwater

Highlight • Cycleway

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

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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 …

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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

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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

Thursday 8 October

26°C

11°C

-- %

Additional weather tips

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Comments

April 18, 2022,2: Brunswick-Williamsport 🌨❄️🌨???

Today was intense. I knew wr bad weather and some prolonged rain was on the way, but (wet) snow all day? Fortunately, that is also strange here. After the bicycle repair shop also a bit later on the road, and that was quite heavy all in all. Also very cool and beautiful of course (vapor on the water, mist, beautiful …

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