The lower Wabash Valley---215 miles as the river flows from Terre Haute, Ind., to its meeting with the Ohio Valley; 3 to 12 miles across from bedrock wall to bedrock wall; as much as 150 feet from modem alluvial plain to ancient bedrock floor; conduit for 6 1/3 cubic miles of water each year by both gentle current and angry torrent; drainer of 33,000 square miles of basin; reservoir for 750 billion gallons of ground water within the alluvial fill at any given moment; storehouse of 18 cubic miles of sediment, some in active transit but much more waiting thousands of years between legs of its fitful journey to the sea.
Shaver, R. H., 1979, Geologic story of the lower Wabash Valley with emphasis on the New Harmony area: Indiana Geological Survey Occasional Paper 27, 14 p., 6 figs.
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