Locust Grove Nature Center – Dalecarlia Tunnel loop from Rockville

Mountain biking trails

Locust Grove Nature Center – Dalecarlia Tunnel loop from Rockville

Moderate

3.2

(26)

riders

Locust Grove Nature Center – Dalecarlia Tunnel loop from Rockville

03:18

49.8km

360m

Mountain biking

Moderate mountain bike ride. Good fitness required. Suitable for all skill levels. The starting point of the route is accessible with public transport.

Last updated: September 10, 2026

Tips

Includes a segment in which cycling is not permitted

After 18.6 km for 329 m

Waypoints

Start point

Train Station

Get Directions

11.2 km

Locust Grove Nature Center

Highlight • Rest Area

This park has something for every kind of outdoor enthusiast, from athletic fields and ice skating to picnic tables and a nature center for the kids. With over 5 miles …

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11.8 km

Wooden bridge and Arch Eagle Scout project

Highlight • Bridge

21.1 km

Cabin John local park (by McArthur)

Highlight • Rest Area

With its shady trails, playgrounds, and gentle creek, Cabin John Park is a local favourite for everything from peaceful walks to family picnics—where nature and community come together just outside the city.

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23.1 km

Chesapeake and Ohio Canal Trail

Highlight (Segment) • Trail

The Chesapeake and Ohio (C&O) Canal Trail is a 184.5 miles trail that runs alongside the C&O Canal. It is made of a mix of dirt and gravel. As it …

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27.3 km

Little Falls Dam

Highlight • Monument

The Little Falls Dam is a low dam built in the Potomac in 1959. It now separates the Upper Potomac River and Lower Potomac River, forming the Little Falls Reservoir. …

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28.0 km

Lock 6, Chesapeake and Ohio Canal

Highlight • Monument

One of the locks (#6 of 75) on the Chesapeake and Ohio Canal. These should ensure the shipping traffic between Cumberland and Washington to transport coal.
The lock keeper's houses …

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28.4 km

Chesapeake and Ohio Canal

Lake

30.1 km

Dalecarlia Tunnel

Highlight • Structure

The Dalecarlia Tunnel runs the Capital Crescent Trail under the Washington Aqueduct and MacArthur Boulevard. It was built in 1910 as a railway tunnel and is now over 100 years old.

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32.2 km

Loughborough Mill

Highlight • Historical Site

It was here that Nathan Loughborough built a mill around 1830 and participated in the growing wheat trade. It is reported that the mill ceased operations during the Civil War …

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49.8 km

End point

Train Station

Way Types & Surfaces

Way Types