THE ALLEGHENY RIVER

• The Allegheny River (325 m; 523k) begins in the Appalachian Mountains of northern Pennsylvania and runs south into Pennsylvania and New York. It joins the Monongahela at Point State Park to form the Ohio River.
• The Allegheny is one of the easternmost rivers of the Mississippi River system.
• The Allegheny River is navigable through 9 locks and dams that keep the navigation channel at 9ft.
• Before the railroad era, the river was an important commercial route, particularly timber, and is still used to transport coal, fuel and other sizeable freight.

THE MONONGAHELA RIVER

• The Monongahela River (128m; 206k), known as the "Mon," begins at the West Fork and Tygart rivers in Fairmont, West Virginia. It flows through West Virginia into Western Pennsylvania then meets the Allegheny River at Pittsburgh to form the Ohio River.
• Native Americans named the river Monongahela, which means river with crumbling or falling banks.
• At the height of steel production in Pittsburgh, 58 mills operated along the Monongahela River

YOUGHIOGHENY RIVER

• The Youghiogheny river (122; 195k), known as the “Yough”, is a tributary of the Monongahela River and runs through West Virginia, Maryland, and Pennsylvania.
• Tucked away in small, forgotten slopes and hollows can be found a diversity of at least 11 animal and 15 plant species that are threatened or endangered on a statewide or national basis.
• In 1976, a 21-mile portion of the river had been set aside as Youghiogheny Scenic and Wild River. This corridor is managed by the Forest and Park Service to preserve the wild and natural scenic, geologic, historic, ecologic, recreational, fish, wildlife, and cultural resources.