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
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
| Kittanning | |
| Plum (city, Pennsylvania) | |
| Monongahela River |
| What river do the Allegheny and Monongahela form? Read answer... | |
| What town does the allegheny river start? Read answer... | |
| How deep is the allegheny river in pennsylvania? Read answer... |
| Which direction does the Allegheny River flow? | |
| Largest fish in the allegheny river? | |
| Where does the allegheny river start? |
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