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Washington County

Big Slackwater – Big Slackwater View loop from Williamsport

Washington County

Big Slackwater – Big Slackwater View loop from Williamsport

Moderate

4.7

(7465)

14,915

riders

Big Slackwater – Big Slackwater View loop from Williamsport

03:53

50.6km

160m

Gravel riding

Moderate gravel ride. 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 13, 2026

Tips

Your route passes through protected areas

Please check local regulations for:

Chesapeake and Ohio Canal National Historical Park

Waypoints

A

Start point

Parking

1

8.44 km

Cumberland Valley campsite

Highlight • Rest Area

nice flat site, easy access to trail. Fairly quiet

Tip by

2

13.1 km

Halfway Point

Highlight • Structure

3

20.7 km

Big Slackwater

Highlight • River

4

21.6 km

Big Slackwater

Highlight • Cycleway

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

Tip by

5

25.8 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 …

Tip by

6

25.8 km

Dam 4 C&O

Highlight • Monument

Great spot to see the Dam.

Tip by

7

30.8 km

Potomac River Trail

Highlight • Trail

8

31.6 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

B

50.6 km

End point

Parking

Way Types & Surfaces

Way Types

36.7 km

7.38 km

3.14 km

1.78 km

1.71 km

Surfaces

36.9 km

7.38 km

3.58 km

1.43 km

1.34 km

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Elevation

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

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Weather

Powered by Foreca

Today

Saturday 10 October

23°C

7°C

13 %

Additional weather tips

Max wind speed: 13.0 km/h

to get more detailed weather forecasts along your route

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