Bordered on the north by Michigan, on the east by Ohio, on the west by Illinois, on the northwest by Lake Michigan and on the south by Kentucky (through the Ohio River), Indiana (Indian Land) is broken up into three main physical regions: The Great Lakes Plain in the northern third of the state, the Tipton Till Plain in the central third, and the Southern Hills and Lowlands region in the southern third. In other words, central and northern Indiana are mainly flat, with some low rolling hills and soil composed of glacial sands, gravel and clay, which results in exceptional farmland, in northwest are various sand ridges and dunes, located along the Lake Michigan shoreline, and the southern segment of the state is characterized by profound valleys and rugged, hilly terrain much different from the rest of the state.
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