4.4
(12)
98
riders
9
rides
Gravel biking around Rosslyn Farms offers a network of trails, many utilizing former railway lines, characterized by features like tunnels and trestle bridges. The terrain includes varied elevation changes, with routes featuring both moderate climbs and flatter sections. This area provides diverse gravel biking experiences across its landscape.
Last updated: May 13, 2026
4.5
(4)
18
riders
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
4.4
(5)
50
riders
89.1km
04:46
590m
590m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.

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4.0
(1)
14
riders
25.8km
01:20
150m
150m
Easy gravel ride. Great for any fitness level. Mostly paved surfaces. Suitable for all skill levels.
4.0
(1)
9
riders
55.8km
03:03
530m
530m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
5.0
(1)
7
riders
Easy gravel ride. Great for any fitness level. Mostly paved surfaces. Suitable for all skill levels.
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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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The McDonald Trail Station is a welcome center and trail parking for the Panhandle Trail and Montour Trail. There is also an exhibition inside the building with local artifacts and history.
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The McDonald Trestle is a historic former railroad bridge, and is now a nearly 1,000‑foot long pedestrian and cycling viaduct on the Montour Trail.
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Wet tunnel with water dripping from ceiling. Very cold almost icy.
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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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Rosslyn Farms offers a good selection of gravel biking routes, with over 10 trails to explore. These range in difficulty from easy to difficult, ensuring options for various skill levels.
Yes, Rosslyn Farms has several easy gravel bike trails. A great option for beginners or families is the Helicon Brewery – Panhandle Trail loop from Rennerdale, which is about 16 miles long and features gentle terrain.
For experienced gravel bikers seeking a challenge, routes like the Enlow Tunnel – Helicon Brewery loop from Carnegie offer significant elevation changes over its 34 miles. Another demanding option is the Enlow Tunnel – McDonald Trestle Bridge loop from The Mall at Robinson, which covers over 44 miles with considerable climbs.
Many of the gravel bike trails in Rosslyn Farms are designed as loops. For example, the Enlow Tunnel – Montour Trail loop from The Mall at Robinson provides a moderate 28-mile circular route, combining tunnel sections with open trail riding.
The spring and fall months generally offer the most pleasant conditions for gravel biking in Rosslyn Farms, with mild temperatures and vibrant scenery. Summer can also be enjoyable, though it's wise to start earlier in the day to avoid peak heat. Always check local weather forecasts before heading out.
The gravel bike trails around Rosslyn Farms primarily utilize converted railway lines, featuring a mix of packed gravel, dirt, and some paved sections. You'll encounter varied elevation changes, from flatter stretches to moderate and significant climbs, often passing through tunnels and over trestle bridges.
While riding, you might encounter historical elements from the old railway lines, such as tunnels and trestle bridges. For specific attractions nearby, consider visiting the Fort Pitt Block House or the Acrisure Stadium, though these may require a slight detour from the immediate trails.
Yes, if you're looking for a natural highlight, the Settler’s Cabin Waterfall is located near Rosslyn Farms and could be a worthwhile stop or a destination for a shorter ride or hike in conjunction with your gravel biking adventure.
The gravel biking experience in Rosslyn Farms is highly regarded by the komoot community, with an average score of 4.1 stars from over 9 reviews. Riders often praise the unique features like tunnels and trestle bridges, the varied terrain, and the well-maintained nature of the converted rail trails.
Some routes, like the Panhandle Trail – Helicon Brewery loop from Collier Township, incorporate stops at local establishments such as Helicon Brewery, offering opportunities for refreshments directly along or very close to the trail. Many trailheads are also located near towns with various amenities.
Winter gravel biking can be possible, but conditions will vary significantly. Trails may be covered in snow or ice, especially in shaded areas or after winter storms. It's crucial to check local weather and trail conditions, and ensure your bike is equipped for colder, potentially slippery surfaces.


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