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The river's path traveled through modern-day West Virginia, Kentucky, Ohio, Indiana, and Illinois, finally emptying into the Gulf of Mexico, which at the time extended to southern Illinois. The glaciers of the Ice Age soon began to block the Teays, effectively damming the river and forming Lake Tight, near what is now Chillicothe, Ohio.
Geologic Map of West Virginia. West Virginia's geologic history stretches back into the Precambrian, and includes several periods of mountain building and erosion. At times, much of what is now West Virginia was covered by swamps, marshlands, and shallow seas, accounting for the wide variety of sedimentary rocks found in the state, as well as its wealth of coal and natural gas deposits.
The lake changed sizes as the ice front moved and as the volume of water changed. At its largest, it rose to 1,100 feet (340 m) above sea level. Eventually the water found a low divide near New Martinsville, West Virginia, creating an outlet to the south and west into the Teays River. Thus, the upper Ohio network of river valleys came into form.
Cranberry Glades—also known simply as The Glades—are a cluster of five small, boreal-type bogs in southwestern Pocahontas County, West Virginia, United States. This area, in the Allegheny Mountains at about 3,400 feet (1,000 m), is protected as the Cranberry Glades Botanical Area , part of the Monongahela National Forest .
In Virginia and West Virginia, the Teays River flowed in the valleys of the modern New River and Kanawha River (Hansen, 1995). The river then flowed west to Scioto County, Ohio, and to Ross County, Ohio, near Chillicothe. The valley then disappears under glacial sediments but can be tracked using water well yields and other means (Hansen, 1995).
Glaciation in this area of the plateau removed the sharp relief that is seen in the plateau's unglaciated areas. The line of the distant peaks approximates the level of a peneplain that was uplifted to form the plateau. Aerial view of Allegheny Plateau terrain surrounding Weston, West Virginia
West Virginia was never the site of glacial activity during the Ice Age, but the state was home to creatures like mammoths, mastodons, and giant ground sloths. One local ground sloth, Megalonyx jeffersonii , was subject to the scholarly investigations of Thomas Jefferson , who misinterpreted the large-clawed remains as belonging to a lion-like ...
The southern glacial maximums extended south to Washington state near Olympia in the west and to Spokane, the Idaho Panhandle, and much of Western Montana at the eastern glacial edge. At its eastern end the Cordilleran ice sheet merged with the Laurentide Ice Sheet at the Continental Divide , forming an area of ice that contained one and a half ...