Mammoth Cave National Park - a national park in Kentucky having a large cavern and an underground river

American state - one of the 50 states of the United States

U.S.A., United States, United States of America, US, USA, America, U.S. - North American republic containing 50 states - 48 conterminous states in North America plus Alaska in northwest North America and the Hawaiian Islands in the Pacific Ocean; achieved independence in 1776

Bowling Green - a town in southern Kentucky

capital of Kentucky, Frankfort - the capital of Kentucky; located in northern Kentucky

Lexington - a city in eastern Kentucky; noted for raising thoroughbred horses

Louisville - the largest city in Kentucky; located in north central Kentucky on the Ohio river; site of the Kentucky Derby

Owensboro - a town in northwestern Kentucky on the Ohio River; a tobacco market

Paducah - a town in western Kentucky on the Ohio River

Cumberland River, Cumberland - a river that rises in southeastern Kentucky and flows westward through northern Tennessee to become a tributary of the Ohio River in southwestern Kentucky

Tennessee River, Tennessee - a river formed by the confluence of two other rivers near Knoxville; it follows a U-shaped course to become a tributary of the Ohio River in western Kentucky