New York Chicago Boston Washington DC
Centennial State Bay State Old Line State Peach State
Cape Cod Bay Herring Bay San Pablo Bay Chesapeake Bay
Interstate 95 Interstate 70 Interstate 68 Interstate 83
Mason-Dixon Line Transpeninsular Line 49th Parallel Tropic of Cancer
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Susquehanna River Putuxent River Potomac River Patapso River
5.6 million 15.6 million 560 000 1.56 million