United States of America
The United States of America are located in North America. It borders Canada and Mexico. It is 9,826,630 km2 (3,794,066 sq mi) in size and has an estimated population of 306 million.
Conrail caboose 21248 in the yard in Allentown, PA, USA on 5-27-09.
Pennsy style signals still used by Norfolk Southern in some locations.