Fishing below the dam at the Falls of the Ohio.  Looking SE toward Louisville, Jefferson County.  February 25, 2002.  1:30 p.m. EST.

Photographer's comments:
     Beneath this turbulent, shallow water lie the Falls of the Ohio, one of the more important geographical pinpoints in American history, and the main reason for the founding of Kentucky's largest city, Louisville.
     The falls, a series of shallow limestone shelves rather than one abrupt drop-off, stretched for more than two miles, descending some 26 feet.  The falls would stop river traffic completely during the dry months, and river travelers had to go overland for a few miles before they could continue their trip down the Ohio.  Thus was begun Louisville, whose early nickname was "Falls City."
     Starting in 1830 and continuing today, various lock-and-dam projects have kept the river navigable past the Falls of the Ohio.  In the photo above, a section of the most recent dam can be seen just below the bridge.  A small part of the original limestone shelves is visible at the base of the dam.
     The falls were, some 375-400 million years ago, part of an inland sea.  Thousands of coral fossils are embedded in the limestone riverbed.  In the dry months of summer and fall, the "fossil beds" are revealed.  A Falls of the Ohio interpretive center was opened in the early 1990s.  It's located on the Indiana side of the river, right above the falls.  Check out the links below for more information. 
Other photos of this subject:
Links to more about this subject :
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1) Falls of the Ohio State Park (Indiana).  This has much information about the falls and the interpretive center.  Look on the homepage for a good aerial photo of the falls during the dry season.
     2) Kentucky Educational Television "electronic field trip" to the falls.  Good links to other, related sites.
More location information:
The photo above was shot from the observation deck at the Falls of the Ohio interpretive center in Clarksville, Indiana.  West Louisville is on the far bank; downtown Louisville is about a half-mile to the east (left in the picture). 
Tech notes:
Posted March 8, 2002.