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Big Run (North Fork South Branch Potomac River tributary) facts for kids

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Big Run
A photograph of a riverbed amidst a dense forest. The contrasts are stark. The riverbead is large, flat black rocks. The riverbank is distinct for being lined with a very green moss. The forest floor is brown with fallen pine needles.
Big Run, just after it leaves the marshland and enters the forest, below the beaver dam at river mile 12.4. Monongahela National Forest, West Virginia, 8 October 2017
Country United States
State West Virginia
County Pendleton
Physical characteristics
Main source 38°42′43″N 79°33′35″W / 38.711885°N 79.559813°W / 38.711885; -79.559813
River mouth North Fork South Branch Potomac River
Cherry Grove, West Virginia
38°38′15″N 79°31′14″W / 38.637589°N 79.520687°W / 38.637589; -79.520687
Length 13 miles (21 km)
Basin features
GNIS feature ID 1550331

Big Run is a river in West Virginia, about 13 miles (21 km) long. It flows through the beautiful Monongahela National Forest in Pendleton County, West Virginia. This river is a branch of the North Fork South Branch Potomac River. It starts just west of a tall mountain called Spruce Knob.

The Journey of Big Run

Big-Run-Monongahela-National-Forest-beaver-dam-8-Oct-2017
The first beaver pond at the start of Big Run. You can see the beaver dam and a tree cut down by beavers!

Big Run begins in a marshy area, not far from Forest Road 112. At first, it's just small streams and wet ground. But then, something interesting happens! Between about 12.8 and 12.4 miles (20.6 and 20 km) from where it ends, you'll find a series of beaver dams.

These dams turn the marsh into a chain of small lakes. After the last beaver dam, at about 12.4 miles (20 km) from its end, Big Run truly becomes a clear river. It leaves the open marsh and flows into a deep, wooded valley.

As Big Run continues its journey, other smaller streams join it. These include Elk Run, Teeter Camp Run, and Sawmill Branch Run. Finally, Big Run empties into the North Fork South Branch Potomac River. This happens near a place called Cherry Grove, right across a bridge on Snowy Mountain Road.

Did you know there are other rivers named Big Run in West Virginia? It's a common name for streams in the area!

Exploring Big Run Trail

Big-Run-Monongahela-National-Forest-trail-sign-8-Oct-2017
A sign along the Big Run Trail. It tells a story about old steam engines and logging camps!

You can explore parts of Big Run by walking along the Big Run Trail (also known as Forest Trail 527). This trail follows the eastern side of the upper part of the river.

A cool fact about this trail is that some of it used to be a railroad line. Long ago, this railway was used by the Parsons Pulp and Lumber Company. They used steam engines to pull heavy loads of logs to a mill. So, when you walk on this trail, you're walking on a piece of history!

You can get onto the Big Run Trail from a few different spots. One way is from the Gatewood Trail, which is off Sawmill Run Road. Another way is from a parking lot on Forest Road 112. It's a great way to see the river and the surrounding forest up close!

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