USA - World Travel Folded Maps Author:John Bartholomew, Bartholomew Fully revised and updated, this physical reference map covers an area from British Columbia and Newfoundland to Mexico's Sierre Madre and the Bahamas - taking in 50 states on the main map at a scale of 1:5,000,000 (79 miles to one inch), with an Alaska inset 1:10,000,000 (158 miles to one inch). Relief is indicated by a system of layer colouring... more » overlain by additional physical and communication detail - glaciers, ice fields, marshland, highways, roads, railways, canals, airports and ferry routes. International, state and provincial boundaries, state and national capitals are also featured.« less