United States Interstate Highway Map: Web a us road map that highlights all 50 states and capital cities, including the nation’s capital city of washington, dc. Web 78 rows there are 70 primary interstate highways in the interstate highway system, a network of freeways in the united. (alaska, hawaii, and puerto rico also have interstate.

United States Interstate Highway Map

Web a map of the us interstate highway system, showing the national capital, state capitals and highway numbers along with extensive road and. Full size detailed road map of the. (alaska, hawaii, and puerto rico also have interstate.