The Great Allegheny Passage, or GAP, was once a rail line. Now it's a 150-mile multi-use trail that winds through Maryland and Pennsylvania, with this section traveling alongside the Casselman River. The trail surface is mostly crushed stone dust with occasional stretches of pavement, so it's easily ridden on a touring bike.

Ron

August 16, 2024

Cycling

From Pittsburgh to Cumberland it is a gradual uphill grade with a nice decent into Cumberland. Going west, the uphill grade climb out of Cumberland is one you will want to investigate to be sure you are up for that. The trail covers a lot of historical locations and you can see some nice videos about the GAP on YouTube search for @railtrailbikeadventures and see the playlist. Really nice and informative. Highly suggest riding this 150 mile trail - it is on the Rail Trail Hall of Fame list!

Hallel Yemini

October 11, 2025

Cycling

The best bike trip I’ve been on. You need water, regular clothes change (warm/cold weather), some money for nice restaurants on the way, and company

In the know? Log-in to add a tip for other adventurers!

Nearby routes

Best routes near Great Allegheny Passage (GAP)

4.5

(4)

riders

#1.

Meyersdale Visitors Center – Mason-Dixon Line Monument loop from Rockwood

141km

10:52

1,330m

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

Navigate

Send to Phone

Save

Hard

5.0

(3)

riders

#2.

Salisbury Viaduct – Great Allegheny Passage (GAP) loop from Rockwood

33.4km

02:09

220m

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

Navigate

Send to Phone

Save

Moderate

riders

#3.

Rockwood – Great Allegheny Passage (GAP) loop from Fort Hill

49.1km

03:13

380m

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

Navigate

Send to Phone

Save

Moderate

Details

Informations

Distance 10.0 km

Uphill 120 m

Downhill 100 m

Weather

Today

Thursday 2 April

19°C

12°C

34 %

Additional weather tips

Max wind speed: 22.0 km/h

Most visited during

January

February

March

April

May

June

July

August

September

October

November

December

See nearby routes

Take Me There

Location: Garrett, Somerset County, Pennsylvania, United States

Other Popular Places to Check Out

Eastern Continental Divide Tunnel

Big Savage Tunnel

Mason-Dixon Line Monument

Meyersdale Visitor Center

Salisbury Viaduct

Confluence

Rockwood

Maple Festival Park Tent Camping

Great Allegheny Passage Bridge Over the Youghiogheny River

9/11 National Memorial Trailhead

Unicycle on Scenic Bike Path

View of Lake at Mount Davis Natural Area

Great Allegheny Passage (GAP)

#1.

Meyersdale Visitors Center – Mason-Dixon Line Monument loop from Rockwood

#2.

Salisbury Viaduct – Great Allegheny Passage (GAP) loop from Rockwood

#3.

Rockwood – Great Allegheny Passage (GAP) loop from Fort Hill

Other Popular Places to Check Out

Sign up or log in to keep exploring this route

We value your privacy ⛰️

We value your privacy ⛰️