Allegheny Watershed Network

Boaters enjoy the recreational amenities of the Allegheny River, one of the Atlas' goals.

An educational tool, the Watershed Atlas of the Monongahela and Allegheny Rivers is an online outlet—created in 1999—to educate residents on Western PA watersheds.


Unveiled in 1999, the Watershed Atlas of the Monongahela and Allegheny Rivers is an online outlet created by the Allegheny Watershed Network to explore the Commonwealth’s watersheds that connect Pennsylvania to parts of New York, West Virginia, and Maryland. The Atlas was updated in 2001 to include the Monongahela watershed.

As the Allegheny and Monongahela Rivers cover a combined 19,154 miles of Western Pennsylvania, the Atlas provides insight into how glaciers and mounted shaped the landscape and helps visitors uncover all of the recreational opportunities that the watersheds have to offer.

An educational tool, the Atlas also provides in-depth information on each watershed and describes the potential negative impacts that our society can have on them.

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