4.7
(12)
161
riders
3
rides
Gravel biking around Glassport, Pennsylvania, is characterized by its strategic location along the Monongahela River, providing access to an extensive network of rail-trails. The region features diverse terrain, including sections of the Great Allegheny Passage, known for its crushed limestone surface. Riders can expect routes that traverse river valleys, pass through areas with industrial heritage, and offer views of the surrounding Allegheny County landscape. Elevation changes are generally moderate, with options for longer distances.
Last updated: June 30, 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.
5.0
(2)
15
riders
44.9km
02:15
150m
150m
Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.

Sign up for free
4.5
(4)
51
riders
88.5km
04:42
560m
560m
The Three Rivers Heritage Trail – Hot Metal Bridge loop from Glassport offers a truly immersive gravel biking experience, blending Pittsburgh's industrial past with its vibrant riverfront present. You'll navigate…
Our route recommendations are based on thousands of hikes, rides, and runs completed by other people on komoot.
Start today with a free account
Your next adventure awaits.
Login or Signup
Great ride along the river with several places to pull off and enjoy the view.
0
0
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.
1
0
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
0
0
its just a cemetery. i was riding for distance. and needed this place to keep the route on the GAP trail.
1
0
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.
0
0
The Hot Metal Bridge is one of the most recognizable landmarks along the GAP. It crosses the Monongahela River and was an important bridge during the city's industrial heyday. Now, it is a great place to cross by bike and get a wonderful view of the city and river below.
1
0
There are several gravel biking routes around Glassport, with komoot featuring 7 distinct tours. These routes offer a mix of easy, moderate, and challenging options, catering to various skill levels.
Gravel biking around Glassport primarily features riverside paths and crushed limestone trails, especially on sections of the Great Allegheny Passage. You'll find routes traversing river valleys and offering views of the Monongahela River, with generally moderate elevation changes.
Yes, the Great Allegheny Passage (GAP) is known for being family-friendly, with a hard, smooth crushed limestone surface. While not directly in Glassport, it's easily accessible and offers scenic riverside cycling suitable for families. For a specific route, consider the Red Waterfall – Red Waterfall loop from Versailles, which is rated as easy and covers 18.4 miles (29.6 km).
Many routes offer views of the Monongahela River. You can also encounter unique features like the Red Waterfall, known for its distinctive color, and historical sites such as the McKeesport Connecting Railroad Bridge and the Homestead Pump House. The Red Waterfall – Homestead Pump House loop from Versailles specifically passes these attractions.
Many multi-use trails in the region, including sections of the Great Allegheny Passage, are generally dog-friendly, provided dogs are kept on a leash. It's always a good idea to check specific trail regulations before heading out with your pet.
The spring and fall seasons typically offer the most pleasant weather for gravel biking in Glassport, with comfortable temperatures and beautiful foliage. Summer can be enjoyable, but be prepared for warmer temperatures. Winter conditions can vary, with potential for snow or ice, so check local forecasts.
Yes, for those seeking a challenge, the Three Rivers Heritage Trail – Hot Metal Bridge loop from Glassport is a difficult route spanning 70.4 miles (113.4 km) and taking over 7 hours to complete. It offers extensive riding along the Three Rivers Heritage Trail.
Yes, several routes are designed as loops. For example, the Red Waterfall – Red Waterfall loop from Versailles is an easy 18.4-mile (29.6 km) circular trail, and the Liberty Trail loop from Versailles is a moderate 15.7-mile (25.2 km) option.
The gravel biking routes in Glassport are highly rated by the komoot community, with an average score of 4.6 stars from over 10 reviews. Riders often praise the scenic riverside paths, the well-maintained crushed limestone surfaces, and the blend of natural beauty with historical points of interest.
While Glassport is situated along the Monongahela River, direct public transport access to specific trailheads can vary. It's advisable to check local bus schedules and routes for Allegheny County to plan your approach to the trail access points.
Parking is generally available at various access points along major trails like the Great Allegheny Passage and the Three Rivers Heritage Trail. Specific parking information for trailheads near Glassport, such as those for the Three Rivers Heritage Trail, can often be found on local trail conservancy websites or by checking maps for designated parking areas.
Glassport and the surrounding Mon Valley area offer local cafes and pubs where you can refuel. For accommodation, you'll find options ranging from hotels to guesthouses in nearby towns, particularly closer to Pittsburgh, providing convenient bases for exploring the trails.


Browse the best Gravel rides in other regions.