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The Allegheny Mountains have a northeast–southwest orientation, running for about 300 miles (480 km) from north-central Pennsylvania southward, through western Maryland and eastern West Virginia . The Alleghenies comprise the rugged western-central portion of the Appalachians. They rise to approximately 4,862 feet (1,482 m) in northeastern ...
The Allegheny River ( / ˌælɪˈɡeɪni / AL-ig-AY-nee) is a 325-mile-long (523 km) headwater stream of the Ohio River that is located in western Pennsylvania and New York in the United States. It runs from its headwaters just below the middle of Pennsylvania's northern border, northwesterly into New York, then in a zigzag southwesterly across ...
Ohio counties on the Ohio River — located within the Appalachian Ohio region. Pages in category "Ohio counties on the Ohio River" The following 14 pages are in this category, out of 14 total.
List of counties in Ohio. There are 88 counties in the U.S. state of Ohio. Nine of them existed at the time of the Ohio Constitutional Convention in 1802. [ 1] A tenth county, Wayne, was established on August 15, 1796, and encompassed roughly the present state of Michigan. [ 2] During the Convention, the county was opposed to statehood, and was ...
The Youghiogheny River ( / jɒkəˈɡeɪni / yok-ə-GAY-nee[ 6] ), or the Yough ( / ˈjɒk / YOK) for short, is a 134-mile-long (216 km) [ 2] tributary of the Monongahela River in West Virginia, Maryland, and Pennsylvania. It drains an area on the west side of the Allegheny Mountains northward into Pennsylvania, providing a small watershed in ...
The Ohio River is a 981-mile-long (1,579 km) river in the United States. It is located at the boundary of the Midwestern and Southern United States, flowing in a southwesterly direction from western Pennsylvania to its mouth on the Mississippi River at the southern tip of Illinois. It is the third largest river by discharge volume in the United ...
This is a list of locks and dams of the Ohio River, which begins at the confluence of the Allegheny and Monongahela rivers at The Point in Pittsburgh, Pennsylvania and ends at the confluence of the Ohio River and the Mississippi River, in Cairo, Illinois . A map and diagram of U.S. Army Corps of Engineers operated locks and dams on the Ohio River.
1. Ohio River—981 miles. The Ohio River is the longest in Ohio. This river flows as long as 981 miles from Pittsburgh, Pennsylvania, to Cairo, Illinois, where it meets the Mississippi. Its ...