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| | Pittsburgh PA Allegheny County Pennsylvania links directory |
 | | Allegheny county, southwestern Pennsylvania, U.S., consisting of a hilly region on the Allegheny Plateau bounded to the southeast by the Monongahela and Youghiogheny rivers and to the northeast by the Allegheny River. |
 | | The Ohio, Allegheny, and Monongahela rivers converge in the centre of the county to form an area known as the Golden Triangle; this was a strategic point of contention between the French and the English, who fortified the area with Fort Duquesne (1754) and Fort Pitt (1761), respectively. |
 | | The river enters New York state where the Allegheny Reservoir is impounded at Allegany State Park; turning southwest, it continues for 120 miles (190 km), meandering to the southeast and again southwest and eventually joining the Monongahela River at Pittsburgh Pennsylvania to form the Ohio River. |
| www.alleghenycounty.net (5406 words) |
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