At 623 feet, this is the longest tunnel on the Montour Trail and has lights on throughout the year to help see your way. During the winter, the two entrances are sealed to prevent the buildup of ice, which could reach 2-3 feet thick due to the high moisture dripping from the walls and ceiling. Trail users can still enter the sealed tunnel via doorways throughout the winter and find a balmy interior. The tunnel was bored in 1913 and lined with concrete in 1928. Operations ended in 1980 and it became part of the Montour Trail in 1992.

Richard

June 10, 2025

Cycling

Wet tunnel with water dripping from ceiling. Very cold almost icy.

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Best routes to National Tunnel

3.0

(1)

riders

1. National Tunnel – McDonald Trail Station loop from Cecil

76.9km

04:41

650m

Hard bike ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.

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2. National Tunnel – McDonald Trestle Bridge loop from Oakdale

56.8km

03:40

430m

Moderate bike ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.

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Moderate

5.0

(3)

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3. National Tunnel – Westland Junction loop from Library

47.8km

03:10

470m

Hard bike ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.

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Hard

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Informations

Elevation 330 m

Weather

Today

Saturday 14 February

11°C

-2°C

0 %

Additional weather tips

Max wind speed: 14.0 km/h

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Location: Cecil-Bishop, Washington County, Pennsylvania, United States

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Tunnel

National Tunnel

National Tunnel

1. National Tunnel – McDonald Trail Station loop from Cecil

2. National Tunnel – McDonald Trestle Bridge loop from Oakdale

3. National Tunnel – Westland Junction loop from Library

Other Popular Places to Check Out

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