Explore the best rated trails in Mars, PA, whether you're looking for an easy walking trail or a bike trail like the Redbank Valley Rail Trail and Knox & Kane Rail Trail . With more than 50 trails covering 4519 miles you're bound to find a perfect trail for you. Click on any trail below to find trail descriptions, trail maps, photos, and reviews.
The GAP trail was amazing. The nicely maintained 150 mile trail along the Pennsylvania mountains and rivers and then the descend into the Cumberland Valley was the best! We took it easy planning to only ride around 30 miles a day staying in Airbnb’s along the way. We rode it in 5 days and spend an extra day in Cumberland and did a 15 mile out and back along the C&O. We rented bikes ahead of time with the Golden triangle in Pittsburgh. they fitted the bikes out for us and provided a shuttle ride back to Pittsburgh for the bikes and us. We are looking forward to doing more trails in this area.
Spring ride along the trail. Trail is asphalt paved and follows the Allegheny River. As is every Spring, water levels very high. Enjoyable ride as always.
Bike touring across tha US and I’m currently set in my hammock about 10 mils outside of frostbite head West! Gotta say that MD & PA has out done themselves on tha GAP! Wish other places “you kno who you are WV, yea you! Anyway, I love its backcountry vibe and tha fact that it’s well maintained! Hope tha rail to trail route gets done sooner rather than later and is maintained this well instead of corrupt politicians pocketing tha money! You kno who you are, you! Anyway, to tha hiker and biker trash out there, one love!
Highly recommend this beautiful and well kept trail. Beautiful to ride along the trees and over the 2 epic ohiopyle bridges.
Rode on a cool spring day. Very smooth paved trail with rollercoaster like hills. Very fun enjoyable ride. 22 mi around the lake and back. Will definitely be back when visiting from VA.
Rode this trail on an early April evening. Beautiful, well-maintained trail was a pleasant surprise to find on my weekend away. The memorial to Ms. Nellis was lovely and touching.
04/04/2026.Great Savage Tunnel on the Great Allegheny Passage is open. Motion sensor lights to illuminate the tunnel. If you have bike lights, maybe use them inside the tunnel so other users can see your presence easier.
We parked at the end of Astral road, though not a designated trailhead, there is a small parking lot for fisherman. This is approx 4.3 miles South of Franklin. A good bit of snow and ice still on the trail. Big ice chunks floating down the Allegheny (River). Sandy Creek jammed up with ice at the Belmar Bridge.
February 2026 hike. A good 6" of snow on the ground. Shenango River frozen due to multiple weeks of below freezing temperatures.
Beautiful sunny but cold Winter Day to get out and enjoy the trail. A good 8" of snow covering the trail. We parked in the small lot out on Trout Island Road and walked to the end and back.
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