There are six geographical regions in Kentucky namely Bluegrass, Knobs, Eastern Mountains and Coal Fields, Pennyroyal, Western Coal Fields and Jackson Purchase. The Bluegrass Region is sometimes misconstrued as having blue grass, but in reality they are not blue. It is called Bluegrass Region because it was the type of grass which was planted in this part many years ago. The Knobs is considered to be the smallest region among all six which has an area of 5956.97 square kilometers. The Eastern Mountains and Coalfields Region is bordered by Ohio, Tug Forks River and Big Sandy, with rugged terrains which create problems in transportation.
Pennyroyal Region was named from pennyroyal, a plant in the mint family, which was growing everywhere. The Western Coalfield Region contains 21 different countries and is surrounded by the Ohio River and the Pennyroyal Region. The Jackson Purchase Region is located in the southwest part of Kentucky, but it used to be not a part of Kentucky. It was given that name because it was Andrew Jackson who purchased a small piece of land from the region and put it on Kentucky 26 years after it became a state of the United States of America.