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  2. Ohio River - Wikipedia

    en.wikipedia.org/wiki/Ohio_River

    The 1768 Treaty of Fort Stanwix with several tribes opened Kentucky to colonial settlement and established the Ohio River as a southern boundary for American Indian territory. [53] In 1774 the Quebec Act restored the land east of the Mississippi River and north of the Ohio River to Quebec, in effect making the Ohio the southern boundary of Canada.

  3. File:1815 map of Ohio by Bourne & Hough r.jpg - Wikipedia

    en.wikipedia.org/wiki/File:1815_map_of_Ohio_by...

    The first map of Ohio to show all the actual surveys within the inhabited part of the state. A rare and early large map of Ohio. County boundaries tinted in color. Townships clearly shown. An extensive key is included detailing land ownership history and some land use. Northwest portion of state not surveyed but shows swamplands and plains.

  4. List of river borders of U.S. states - Wikipedia

    en.wikipedia.org/wiki/List_of_river_borders_of_U...

    The boundaries between Kentucky and West Virginia and the three states to their north – Ohio, Indiana, and Illinois – is based on the historical northern bank of the Ohio River. [1] In 1763, Britain defeated France in the Seven Years' War, whose North American theater was called the French and Indian War. At that time, Canada, which had ...

  5. List of locks and dams of the Ohio River - Wikipedia

    en.wikipedia.org/wiki/List_of_locks_and_dams_of...

    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.

  6. First principal meridian - Wikipedia

    en.wikipedia.org/wiki/First_Principal_Meridian

    U.S. Bureau of Land Management map showing the first four principal meridians The first principal meridian is a meridian that began [ 1 ] at the junction of the Ohio River and Great Miami River . It extends north on the boundary line between the states of Ohio and Indiana , and roughly approximates to the meridian of longitude 84° 48′ 50 ...

  7. Ohio water resource region - Wikipedia

    en.wikipedia.org/wiki/Ohio_Water_Resource_Region

    The Ohio water resource region is one of 21 major geographic areas, or regions, in the first level of classification used by the United States Geological Survey to divide and sub-divide the United States into successively smaller hydrologic units. These geographic areas contain either the drainage area of a major river, or the combined drainage ...

  8. Ohio's longest rivers flow for hundreds of miles. See ... - AOL

    www.aol.com/ohios-longest-rivers-flow-hundreds...

    This 503-mile river flows from Ohio to Indiana, and ends in Illinois, draining into the Ohio River, making it the largest northern tributary of Ohio's namesake river. 3. Scioto River—231 miles

  9. List of rivers of Ohio - Wikipedia

    en.wikipedia.org/wiki/List_of_rivers_of_Ohio

    The Ohio River forms its southern border, though nearly all of the river itself belongs to Kentucky and West Virginia. Significant rivers within the state include the Cuyahoga River, Great Miami River, Maumee River, Muskingum River, and Scioto River. The rivers in the northern part of the state drain into the northern Atlantic Ocean via Lake ...