It is associated with joy, sunshine, and tropics.  Orange represents enthusiasm, fascination, happiness, creativity, determination, attraction, success, encouragement, and stimulation.  To the human eyes, orange is seen as a very hot color, so it gives the sensation of heat.
West Virginia, Ohio, Illinois, and Indiana form the northern border  of Kentucky, along the Ohio River.
Nolin River Lake, impounded by Nolin River Dam in Edmonson County. The Nolin River is a 104-mile-long (167 km) tributary of the Green River in central Kentucky in the United States. Via the Green and Ohio rivers, it is a part of the watershed of the Mississippi River.