Waterfalls in Allegheny County offer accessible natural beauty and opportunities for outdoor exploration close to Pittsburgh. The region features a variety of cascades, from charming drops to unique geological formations. These natural features provide serene escapes within the urban and suburban landscape. Many are particularly notable after rainfall or during winter when they can freeze.
Last updated: April 25, 2026
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Popular around Allegheny County
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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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Great easy hike! Wide trails and able to get close to the falls.
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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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Beautiful hiking trail to try out with a small waterfall and very easy walking.
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This section of the Great Allegheny Passage is also known as the Yough River Trail, that is named after the river that the trail follows. It leads from Sutersville to Buena Vista. Along the multi-use trail, you can find several small waterfalls right next to the trail.
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Settler's Cabin Waterfall, though modest at about 5 feet tall, exudes a serene ambiance accentuated by the melodious chirping of birds. The picturesque surroundings enhance the tranquil experience, offering visitors a delightful retreat. Additionally, nestled nearby is a picnic table, perfect for enjoying a meal amidst the soothing sounds of nature.
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The Old Squaw Trail leads from Beechwood Farms to the town of Fox Chapel. The trail follows a beautiful creek and is famous for its waterfalls, while meandering through the forest.
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Allegheny County offers several charming waterfalls. Beyond the well-known Great Allegheny Passage (Sutersville - Buena Vista), which features multiple small cascades, you can also visit Settler’s Cabin Waterfall, known for its tranquil setting, and the unique Red Waterfall, colored by iron-rich water.
Yes, many waterfalls in Allegheny County are suitable for families. Settler’s Cabin Waterfall is a great option, offering a picturesque setting with picnic tables nearby. The Great Allegheny Passage (Sutersville - Buena Vista) also features family-friendly trails alongside its waterfalls.
The Red Waterfall gets its name from the distinctive reddish-orange hue of its water. This color is a natural phenomenon caused by iron-rich water from nearby underground coal mines, making it a unique natural monument along the Great Allegheny Passage. Visitors are advised not to drink the water due to its acidic nature.
Absolutely. Many waterfalls in the county are accessible via easy trails. For instance, the trail to Settler’s Cabin Waterfall is considered very easy walking. Fall Run Park also offers an easy, roughly half-mile trail to its main waterfall, often featuring wooden boardwalks and bridges.
Waterfalls in Allegheny County are particularly impressive after rainfall, when water flow is at its peak. They also offer a unique experience during winter, as they can freeze into beautiful formations. Spring and fall provide pleasant hiking conditions with lush greenery or vibrant foliage.
Yes, Fall Run Park in Glenshaw is often cited as having the closest significant waterfall to downtown Pittsburgh. It features the county's largest and most accessible waterfall, dropping approximately 25-30 feet, and is a popular destination for a quick natural escape.
Beyond the waterfalls themselves, you'll find diverse natural features. Many are nestled within forests and ravines, like Settler’s Cabin Waterfall. You might also encounter unique geological formations, especially around the Red Waterfall, which showcases the effects of acid mine drainage on the landscape.
Yes, Allegheny County offers various outdoor activities. You can explore mountain biking trails, with options like the 'Settlers Cabin Park Loop' or 'Deer Lakes Park loop' detailed in the MTB Trails in Allegheny County guide. For hikers, there are easy routes such as the 'Settler's Cabin Green Loop Trail' found in the Easy hikes in Allegheny County guide. Gravel biking is also popular, with routes like the 'Enlow Tunnel – Montour Trail loop' available in the Gravel biking in Allegheny County guide.
Yes, Settler’s Cabin Waterfall is an excellent spot for a picnic. There are picnic tables conveniently located next to the waterfall in its tranquil ravine setting, making it a great place to relax and enjoy the area.
The Fall Run Trail in Fall Run Park primarily consists of wooden boardwalks with stairs and multiple bridges that cross the creek. This makes for an easy and accessible hike, allowing visitors to get close to the cascading water.
Boyce Mayview Park in Upper St. Clair is known for having multiple waterfalls. One particular fall, about 10 feet high, flows consistently in three distinct drops over shale rock and is found at the end of the Mid-Falls Trail. The park also offers other smaller, seasonal waterfalls to explore.
Yes, the Great Allegheny Passage (Sutersville - Buena Vista), also known as the Yough River Trail, features several small waterfalls right next to the path. This section is particularly notable for the Red Waterfall, a unique natural monument.
Visitors appreciate the accessible natural beauty and the opportunities for outdoor exploration close to Pittsburgh. The charming cascades, unique colored falls like the Red Waterfall, and the peaceful woodland settings are frequently highlighted. Many enjoy the easy hiking trails that lead to these serene spots.


Happy to travel a little further afield? Then browse these guides for the best waterfalls in Allegheny County: