Maine's distinctive coastal landforms include its glacially carved jagged rocky bays and inlets.The landforms of the Appalachian Mountains dominate the northwestern section of Maine. Waterways are significant landforms of Maine. St. John is the state's longest river. Maine's other major water channels include the Saco, Penobscot, Kennebec and Androscoggin rivers. There are 5,000 streams and rivers across the state. North-central Maine is dotted with many deep water lakes, left by the glaciers 12,500 years ago.The lowland areas of Maine are concentrated in the southeast section of the state. The lowlands are densely forested with pine trees. Lowland geographical landforms include fertile farmlands where Maine's potato crop is grown.
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