The Teays River / ˈ t eɪ z / [1] (pronounced taze) was a major preglacial river that drained much of the present Ohio River watershed, but took a more northerly downstream course. Traces of the Teays across northern Ohio and Indiana are represented by a network of river valleys.

Feb 1, 2019 · Teays Valley is the primary trunk of an elaborate system of preglacial bedrock valleys that merge in the vicinity of Lafayette, but well out of sight. These deep valleys are a part of the...

Map showing the location of the Lafayette (Teays) bedrock valley in Indiana. The document includes 2 plates which are also available for download. Both plates are in shapefile, .JPG, and .PDF format.

Buried valley aquifers are found beneath and adjacent to the Ohio River, its major tributaries, and other pre-glacial stream channels such as the Teays River. Figure 1. Aquifer Types in Ohio modified from ODNR Glacial and Bedrock Aquifer Maps.

The Teays River was an ancient stream, comparable in size to the modern Ohio River, that once drained much of the east-central U.S., including nearly two-thirds of Ohio. It was destroyed by the glaciers of the Pleistocene Ice Age about 2 million years ago.

Available potentiometric head above the top of Illinois portion of the Mahomet-Teays aquifer (in feet). Greatest head exceeds 200 feet (dark blue) on the east. The aquifer is unconfined (light gray) on the west. ........ 12. Figure 9. Long-term hydrograph at Petro North ob-well near Champaign, IL in the eastern confined portion of. Figure 10.

Erosional remnants of the Pennsylvanian Age bedrock are present near the Lafayette (Teays) Bedrock Valley in Warren County at the higher elevations of the bedrock surface. These rocks constitute a minor aquifer source and wells typically yield from a

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May 26, 2019 · Discovery of the Mahomet Aquifer helped geologists piece together the route of the Teays through Illinois. As early as the 1880s, a shaft sunk by a coal mine outfit in the Urbana area inadvertently hit the great aquifer—a discovery that …

The major aquifers of a 35,000-square-mile area in western Ohio and eastern Indiana consist of Silurian and Devonian carbonate bedrock and Quaternary glacial deposits.