<P> Southern Indiana is a mixture of farmland , forest and very hilly areas , especially near Louisville and in the south central lime hills areas , stretching from the Ohio River to as far north as Greencastle , to the wide , flat valleys along the Wabash and Ohio rivers . The Hoosier National Forest is a 200,000 - acre ( 810 km ) nature preserve in south central Indiana . Southern Indiana 's topography is more varied than that in the north and generally contains more hills and geographic variation than the northern portion , such as the `` Knobs , '' a series of 1,000 ft ( 300 m ) hills that run parallel to the Ohio River in south - central Indiana . The largely flat and flood - prone bottomlands of Indiana , where the Wabash , White , and Ohio Rivers converge , hosts numerous plant and animal species normally found in the Lower Mississippi and Gulf Coast region of the United States . Brown County is well known for its hills covered with colorful autumn foliage , the former home of T.C. Steele , and Nashville , the county seat and shopping destination . Harrison and Crawford Counties boast three of the state 's most popular commercial caves at Wyandotte , Marengo , and Squire Boone Caverns . </P>
<P> Southern Indiana is a mixture of farmland , forest and very hilly areas , especially near Louisville and in the south central lime hills areas , stretching from the Ohio River to as far north as Greencastle , to the wide , flat valleys along the Wabash and Ohio rivers . The Hoosier National Forest is a 200,000 - acre ( 810 km ) nature preserve in south central Indiana . Southern Indiana 's topography is more varied than that in the north and generally contains more hills and geographic variation than the northern portion , such as the `` Knobs , '' a series of 1,000 ft ( 300 m ) hills that run parallel to the Ohio River in south - central Indiana . The largely flat and flood - prone bottomlands of Indiana , where the Wabash , White , and Ohio Rivers converge , hosts numerous plant and animal species normally found in the Lower Mississippi and Gulf Coast region of the United States . Brown County is well known for its hills covered with colorful autumn foliage , the former home of T.C. Steele , and Nashville , the county seat and shopping destination . Harrison and Crawford Counties boast three of the state 's most popular commercial caves at Wyandotte , Marengo , and Squire Boone Caverns . </P>
what landforms are found mostly in the southern part of indiana
what landforms are found mostly in the southern part of indiana
the `` Knobs , '' a series of 1,000 ft ( 300 m ) hills that run parallel to the Ohio River
the `` Knobs , '' a series of 1,000 ft ( 300 m ) hills that run parallel to the Ohio River