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The andesite line is the most significant regional geologic distinction in the Pacific Ocean basin. It separates the mafic basaltic volcanic rocks of the Central Pacific Basin from the partially submerged continental areas of more felsic andesitic volcanic rock on its margins.
The Ohio River at Cairo is 281,500 cu ft/s (7,960 m 3 /s); [1] and the Mississippi River at Thebes, Illinois, which is upstream of the confluence, is 208,200 cu ft/s (5,897 m 3 /s). [66] The Ohio River flow is greater than that of the Mississippi River, so hydrologically the Ohio River is the main stream of the river system.
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.
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 ...
The Muskingum River (/ m ə ˈ s k ɪ ŋ (ɡ) ə m / mə-SKING-(g)əm; Shawnee: Wakatamothiipi) [4] is a tributary of the Ohio River, approximately 111 miles (179 km) long, in southeastern Ohio in the United States. An important commercial route in the 19th century, it flows generally southward through the eastern hill country of Ohio.
Original - George Washington's map of the Ohio River and surrounding region with notes on French intentions, 1753 or 1754. Reason A historic map not just because of who made it, but because it documents the beginning of the French and Indian War. Washington worked as a surveyor in his youth, so he was capable of producing this himself and the ...
The Ohio Valley changes dramatically around Louisville, as for the first time heading downstream there are no bluffs overlooking the river. The river itself gets much wider and shallower, from 4/10 of a mile wide to over 9/10 a mile wide at the canal entrance, then narrows to less than 3/10 of a mile downstream of the falls as it approaches the Falls of the Ohio, the only natural obstacle ...
Map of the Trace. The Trace was created by millions of migrating bison that were numerous in the region from the Great Lakes to the Piedmont of North Carolina. [2] It was part of a greater buffalo migration route that extended from present-day Big Bone Lick State Park in Kentucky, through Bullitt's Lick, south of present-day Louisville, and across the Falls of the Ohio River to Indiana, then ...