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The Greatest American
River 
Ancient river.
Time for a foray into the past which shaped the present.
In West Virginia, long before the present day, there existed
the greatest of all American rivers. Its name is memorialized
in the valley now traversed by Interstate 64 between Huntington
and Charleston: the Teays (rhymes
with "haze").
Its genesis was millions of
years prior to the Ice Age which lasted from about 1-2
million years ago until 10,000 years ago when the glacier
melted. The Ice Age actually was a series of alternating
warm (interglacials) and cold (glacials) periods. The
river's origin was in the original Appalachian Mountains
which it substantially wore down to the Appalachian Peneplain.
Its course
was from the Blue Ridge in North Carolina, then northerly
across Virginia and along the same northwesterly route as
is followed by the New and Kanawha Rivers today, then to
Huntington, Ashland (Ky.) and Portsmouth (Oh.) where it
swerved northward to Chillicothe (Oh.). If
you drive along Route 23 toward that Chillicothe, you will
pass a sign for a Teays Valley school.
Next it moved westwardly
to Illinois and turned southward past St. Louis and entered
a northern arm of the Gulf of Mexico which extended into
what is now Illinois. The Teays River was a
thousand miles in length.
The gorge. The Teays
flowed in a winding manner along the flattened Appalachian
Peneplain. When the peneplain was uplifted into the
plateau, the river was carried upward on the surface of
the rising land. Its gradient steepened, the Teays
continued to flow downslope to the Gulf of Mexico, deepening
the channel in the bedrock while retaining its winding course.
Rejuvenated, the Teays carved
a deep gorge now known as the New River Gorge
which today is spanned by a unique bridge favored by bungee
jumpers and parachutists and is the site of the popular
Bridge Day in October. To read about the New River
Gorge you can access http://www.nps.gov/neri/
To read about and visualize the geology of tne New River
Gorge and its bedrock click on http://www.wvgs.wvnet.edu/...
and http://www/wvgs.wvnet.edu/...
Glaciers and lake.
The Teays River ceased to exist during the Ice Age.
Four times glaciers between 10,000 and 13,000
feet thick advanced across North America and retreated.
The glaciers spread across the the entire southern half
of the Teays Valley between Chillicothe and its mouth south
of St. Louis. Vast amounts of sand and gravel carried
by the glaciers filled the valley and left a thick ground
moraine. The immense wall of ice acted as a dam and
created a lake about 200 miles long extending
from Chillicothe to Hawk's Nest State Park in West Virginia.
The lake lasted for 25,000 years.
In Pennsylvania the
northern portions of the Monongahela and Allegheny Rivers
were buried, eventually uniting their headwaters at Pittsburgh
and creating the headwaters of the Ohio River. Water
rose in the lake until it found an overflow point near Portsmouth
and began to flow toward Cincinnati and southern Indiana
and Illinois to the Gulf of Mexico. This course became
the lower part of the Ohio River.
The only portion of the
Ohio River which occupies the Teays Valley is the 50-mile-stretch
from Huntington to Portsmouth. To learn more,
study maps, and see photos: http://www.dnr.state.oh.us/...
and http://eostest2.gsfc.nasa.gov/...

Last updated on Friday, September 29, 2000
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