1. A river that rises in Pennsylvania and flows north into New York and then back south through Pennsylvania again to join the Monongahela River at Pittsburgh which is the beginning of the Ohio River
   - Allegheny River

Derived forms: Alleghenies

Type of: river

Part of: Empire State, Keystone State, New York, New York State, NY, PA, Pennsylvania

Encyclopedia: Allegheny, PA Allegheny Allegheny, Pittsburgh Allegheny, Pennsylvania

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