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Pennyfield Lock – Horseshoe Bend at Great Falls loop from Carderock

Routes

Running trails & routes

Pennyfield Lock – Horseshoe Bend at Great Falls loop from Carderock

Hard

5.0

(8234)

12,235

runners

Pennyfield Lock – Horseshoe Bend at Great Falls loop from Carderock

03:13

31.1km

90m

Running

Hard run. 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: July 10, 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

3.08 km

Widewater

Lake

4.01 km

No bridge too far

Highlight • Trail

7.31 km

Chesapeake and Ohio Canal

Lake

9.32 km

Swains Lock

Highlight • Historical Site

These are hard to come by along the C&O canal and usually hidden. Always nice to know where to get water.

Tip by

15.6 km

Dierrsen Wildlife Management Area

Nature Reserve

17.0 km

Lock 22, aka Pennyfield Lock, was built between 1829 and 1831, and the name came from the misspelling of the Pennifield family name. It has been restored and offers overnight stays to recreate the rustic feeling from that period.

Tip by

25.6 km

Washington Aqueduct Observation Platform

Highlight • Viewpoint

Washington Aqueduct was constructed back in the mid-1800s by the Army Corps of Engineers to provide water to Washington, D.C., and is still used today. The observation platform for the …

Tip by

26.0 km

Start of the Great Falls Foot Trail

Highlight • Trail

The Great Falls of the Potomac is a place with various rapids and small falls in the Potomac. The place marked here may only be entered on foot. Bicycles and dogs 😜 must stay outside.

Translated by Google •

Tip by

26.3 km

Horseshoe Bend at Great Falls

Highlight • River

Great Falls has a scenic Horseshoe Bend where the river curves in a horseshoe shape around a rocky outcrop. It's a nice spot to stop for photos on the Chesapeake and Ohio Canal Trail.

Tip by

26.9 km

Lock 15 and View of the Potomac River

Highlight • River

Lock 15 marks the beginning of the "Six Locks" series, which raises the canal 50 feet past Great Falls. Built from red sandstone boulders transported from Seneca, these locks differ …

Tip by

30.9 km

Billy Goat Trail Section C

Highlight • Trail

Section C of the Billy Goat Trail is located in Potomac, Maryland, and is a popular hiking route known for its scenic river views and relatively easier terrain. Stretching 1.6 …

Tip by

31.1 km

End point

Parking

Way Types & Surfaces

Way Types

30.8 km

279 m

< 100 m

Surfaces

19.7 km

10.8 km

591 m

< 100 m

Elevation

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

Weather

Today

Friday 10 July

31°C

21°C

70 %

Additional weather tips

Max wind speed: 10.0 km/h

to get more detailed weather forecasts along your route

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Pennyfield Lock – Horseshoe Bend at Great Falls loop from Carderock

No bridge too far

Swains Lock

Pennyfield Lock

Washington Aqueduct Observation Platform

Start of the Great Falls Foot Trail

Horseshoe Bend at Great Falls

Lock 15 and View of the Potomac River

Billy Goat Trail Section C

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