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Anyone here ever do the Marietta Gorge trail in Lancaster county? I believe that's the name of it unless I'm mistaken, it's14 or so miles long so 28 miles total. The wife and I like to ride and intend to look this trail up and ride there.
 
I've never heard of the Marietta Gorge Trail in Lancaster County, PA.

You may be referring to the Northwest Lancaster County River Trail, which runs through Marietta.

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If so, it's a great ride and worth the trip! There are also many other good trails in the area such as the Enola Low Grade Trail and the Heritage Trail.

You can use the Rails to Trails website to find many others as well:

 
Anyone planning on riding the GAP (Great Allegheny Passage) in Pennsylvania, be aware the trail is closed due to a landslide between Rockwood and Markleton.

I'm a member of the GAP Conservancy and just received this alert:


Closure Between Rockwood and Markleton
GAP Mile 48 | Reported on June 23, 2025 | Last Updated: July 1, 2025
Somerset County has closed a segment of the Great Allegheny Passage between Rockwood (mile marker 43.8) and the parking lot at Markleton (mile marker 50.0) due to an active landslide triggered by recent heavy rain and high winds. The earth continues to move and rocks and trees are falling each day. Do not bypass the barricades. Conditions are unstable. There is no detour.
The Great Allegheny Passage Conservancy arranged and underwrote a free shuttle for bicyclists and hikers between the Rockwood and Markleton trail access points from 9:00 am to 5:00 pm on Tuesday, June 24, Wednesday, June 25, and Thursday, June 26. Many thanks to Allegheny Trail House and 2 Wheel Escapes for providing those shuttles.
Since Friday, June 27, fee-based continuous daily shuttle service has been running between Rockwood and Markleton from 9:00 am to 5:00 pm, seven days a week, until July 15. In Rockwood, look for the shuttle in the parking lot next to the welcome center. In Markleton, look for the the shuttle in the adjacent parking lot, which has shade and restrooms. The shuttle fee per person/bike combo is $20. This fee can be paid via cash (preferred) or credit card directly to the shuttle driver. The shuttles are first-come, first-served; please be patient as there may be waits of 30-45 minutes. Many thanks to Allegheny Trail House, Bill’s Car and Transport Service, 2 Wheel Escapes, and Wheelzup Adventures, for teaming up to provide this unprecedented service. Together with the Great Allegheny Passage Conservancy and Somerset County, all parties will review the possibility of extending this service. past July 15.
Geotechnical engineers deployed by Somerset County are investigating this landslide to provide input into potential solutions. As of this writing, a quick and inexpensive solution appears unlikely. We will update this page regularly.


I rode through there a week ago, just 2 days before it happened, and saw a lot of water running off the mountain in that section due to recent heavy rain. Apparently, there was a slope failure and part of the trail collapsed into the Cassleman River. Repairs could take some time and there is no detour. As noted above, there is a shuttle service available.
 
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