Located in the Midwest, Wisconsin has several ports along Lake Michigan on its eastern coast, which accommodate shipping to and from the Atlantic Ocean. Since 40% of Wisconsin’s land is densely forested, the state’s greatest natural resource has always been its supply of lumber. Today, Green Bay has one of the nation's largest industrial complexes for pulp and paper products. Milwaukee, famous for its brewing and meatpacking industries, is also home to manufacturers of vehicles, metal products, medical instruments, farm implements, and lumber. Wisconsin also has an active agricultural sector that leads the nation in the production of crops such as oats, cranberries, and cabbage. The largest crop, however, is corn, primarily used as feed for cattle.