The Ohio Valley in Kentucky

The Ohio Valley is a sub region in Kentucky running convert|658|mi|km long including parts of 25 counties and across five regions of the state. Over 45% of Kentucky's population live in counties the border the Ohio River, altohugh those counties are only 16% of the state's land area.

The Ohio Valley valley in Kentucky can be broken up into several categories:

The Ohio Valley in Eastern and Northern Kentucky

The physical charactoristics of the Ohio River valley changes very little from its beginning in downtown Pittsburgh, Pennsylvania to just northeast of Louisville, including the section that flows through a small part of the Cumberland Plateau and the Eden Shale hill region of Northern Kentucky. Throughout that entire stretch the river is contained in a very narrow valley bounded by hills that are from 100 to convert|400|ft|m tall and have an average angle of 45 degrees. The river ranges in width in this stretch from around 1/4 of a mile to over 4/10 of a mile.

The Ohio Valley in the Louisville Area

The Ohio Valley changes dramatically around Louisville, as for the first time heading downstream there are no bluffs overlooking the river. The river itself gets much wider and shallower, from 4/10 of a mile wide to over 9/10 a mile wide at the canal entrance, then narrows to less than 3/10 of a mile downstream of the falls as it approaches the Falls of the Ohio, the only natural obstacle along the entire river. The falls were created by very hard coral rock, which the river hasn't been able to erode. The coral contains many visible fossils.

The flood plain through this stretch is very wide and flat, extending convert|10|mi|km out on the Kentucky side and four miles (6 km) on the Indiana side, both east of the Muldraugh Escarpment. Also know as Muldraugh Hill, it divides the Bluegrass and Pennyroyal Plateau Regions in Kentucky, and the "karst plateau" in Indiana. The convert|400|ft|m tall hill is very visible in most parts of Louisville and provides a scenic backdrop for the city.

From Muldraugh Hill to Owensboro

At West Point, Kentucky the river the river crosses the Muldraugh escarpment and is now bounded on both sides by the largest bluffs along its entire length. The bluffs here range from 400-500 feet feet and in many places are almost vertical, although the flood plain is about twice as wide as in Northern Kentucky. The river here averges around 4/10 of a mile wide.

From Owensboro to the Mississippi River

Starting near Rockport, Indiana the bluffs above the river reduce greatly to convert|60|ft|m or less as the river enters a much flatter region. The river itself becomes much more like the Mississippi River in character, widening from around 1/2 a mile wide in the West Point stretch to over 8/10 of a mile, and with many more islands and oxbow lakes. This stretch of the river has 35 islands. many of the oxbow lakes in this stretch have been made into wildlife management areas mostly for waterfowl, including the Ballard WMA which is the state's largest.

Record Fish

Several state fish records come from the Ohio River, including the state's two largest record fish:

*Spoonbill Paddlefish, convert|106|lb|abbr=on, caught by Mr. William Chumbler of Calvert City, Kentucky on March 23, 2004. Largest ever fish officially taken by rod and reel in Kentucky.
*Blue catfish, convert|104|lb|abbr=on, caught by Mr. Bruce Midkiff of Owensboro, Kentucky on August 28, 1999 This is also the world line class record for convert|50|lb|abbr=on test line and also counts as the state record for Indiana. The fish was released back into the river.
*Longnose gar, convert|40|lb|abbr=on, caught by Mr. Kelsie Travis, Jr on August 8, 1956
*Channel catfish, convert|32|lb|abbr=on, caught by 12 year old Kyle Estep of South Point, Ohio on May 26, 2004
*Silver carp, 9lns 8oz, caught by Mr. Marvin Joe Southard of McHenry, Kentucky on August 8, 2004
*Saugeye (Walleye/Sauger hyrid), convert|6|lb|5|oz|kg|abbr=on, caught by Mr. Chuck Kouns of South Shore, Kentucky on February 19, 1998