4.4
(9)
137
riders
7
rides
Gravel biking around Donora, PA, offers diverse terrain shaped by its location along the Monongahela River and the Allegheny Plateau. The region features valleys, ravines, and hills, providing varied elevation changes for cyclists. Many routes utilize former railway lines, offering generally flat grades through forests and farmlands, while other areas present more challenging, hilly gravel roads.
Last updated: July 10, 2026
4.7
(6)
92
riders
139km
07:15
800m
800m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
11
riders
43.3km
02:12
160m
160m
Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
5.0
(1)
5
riders
Easy gravel ride. Great for any fitness level. Mostly paved surfaces. Suitable for all skill levels.
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Popular around Donora
Great ride along the river with several places to pull off and enjoy the view.
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This is a good place to take a break on a hot day, as the waterfall produces cold wind. DO NOT DRINK this water, It is from an acid mine and the red-orange color comes from iron and rust.
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S THE WATERFALL Demonstrating acid mnine drainage The water here is acid and iron-rich, coming up to the surface from underground mines, stairung the-rocks ruspred. Acid mine drainage (AMID) is a major source of water pollution. Cause of extensive stream environmental damage. The Ocean Coal Company, a subsidiaries of Bevind- White Coal Company Philadelphia, PA, esaiblished several mines in this region including, in 1900, Ocean No. 2. It is purported that drainage from ocean No. 2 is the chief cause of the Red Waterfall Why is it acidic and full of iron? Hundreds of millions of years ago, the massive Pittsburgh Coal Seam formed underneath parts of Pennsylvania, West Virginia, and Ohiờ from ancient swamp plants. Sand, silts, shells, and other -matter were deposited and made a rock seal over the carbon-rich vegetation, This rock contained the mineral "pyrite," made of iron and sulfur Coal mining exposes pyrite to oxygen and ground water causing the formation of sulfuric acid and a number of red, orange, and yellow compound s. AMD occurs when this mine water seeps, or in this-case, bursts out into Streams. The yellow sulfur can be seen in the shale near coal seams. GRESCHIN DASSAGE SPONSORED BY: Southwestern PA Heritage Breservation- Commission Allegheny Trail Alliances Regional Trail Corpofation For moterinformation. www.gaptrail.org
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its just a cemetery. i was riding for distance. and needed this place to keep the route on the GAP trail.
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The Cedar Creek Hiker-Biker Campground is one of several campsites free to GAP users. At this one, there is a grassy area for tents, picnic areas, fire rings, and drinking water. It is also possible to park at the campsite. If you want to leave your car overnight, you need to fill out a registration form at the registration kiosk to let the staff know you are on the GAP.
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The Red Waterfall is one of the main highlights on the GAP between West Newton and McKeesport. The falls gets its name from the water that has been colored red by nearby underground coal mines, which has made the water acidic and iron-rich water.
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There are over 6 gravel bike routes available around Donora, offering a variety of experiences for different skill levels.
Donora offers a unique blend of riverfront access, varied topography from the Allegheny Plateau, and extensive trail networks often rooted in its rich industrial heritage. Many routes utilize former railway lines, providing generally flat grades through forests and farmlands, while other areas feature more challenging, hilly gravel roads.
Yes, Donora has several beginner-friendly options. For instance, The Mailbox formation right beside the trail loop from West Newton is an easy 9.2 km route, perfect for those new to gravel biking. Overall, 3 of the routes in the area are rated as easy.
You can expect diverse landscapes, including scenic riverfront views along the Monongahela River, journeys through forests and farmlands, and the rolling hills and valleys of the Allegheny Plateau. Many trails follow repurposed railway lines, offering a mix of natural beauty and historical context.
Yes, several routes are designed as loops. For example, the popular Three Rivers Heritage Trail – Hot Metal Bridge loop from Elizabeth is an extensive 138.6 km loop, and Roundbottom Trekker Campground – The Mailbox formation right beside the trail loop from West Newton offers a moderate 47.3 km loop.
Many trails offer glimpses into Donora's industrial past and natural beauty. You might encounter historical sites or enjoy views of the Monongahela River. While not directly on every trail, nearby attractions include the Red Waterfall and sections of the Great Allegheny Passage.
The area is highly rated by the komoot community, with an average score of 4.7 stars from over 10 reviews. Reviewers often praise the varied terrain, from riverfront paths to former railway lines, and the options available for different ability levels.
Yes, for experienced riders looking for a significant challenge, the Three Rivers Heritage Trail – Hot Metal Bridge loop from Elizabeth is an 86.1 miles (138.6 km) route that typically takes around 9 hours to complete, featuring varied urban and natural landscapes.
The region's diverse topography and natural features make it enjoyable across seasons. Spring and fall offer pleasant temperatures and vibrant scenery, while summer provides lush green views. Winter riding is also possible, though conditions may vary.
While specific facilities vary by route, you can find amenities in nearby areas. For example, the West Newton Visitor Center is a useful stop, and campgrounds like GAP Trail Campground and Cedar Creek Hiker-Biker Campground are accessible in the wider region.
Absolutely. Many of Donora's gravel routes utilize former railway lines, which are a hallmark of the region's gravel biking appeal. These trails often provide generally flat grades and picturesque journeys through forests and farmlands, connecting you with the area's industrial heritage.


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