Most of the harbor, almost all of the city, and much of the surrounding agricultural land is shown. Baltimore harbor is a part of Chesapeake Bay. The bay was formerly just a river valley with its tributaries; but when the eastern part of North America subsided, in late geologic time, it was "drowned" by ocean water, and changed to a bay.
Baltimore has a fine deep-sea harbor, modern railroad and steamship terminals and a good channel through Chesapeake Bay to the sea. A variety of manufacturing industries have grown up in this city, some of the leading products being iron and copper goods, fertilizers, canned foods, sugar, meat and underwear.
