|Description: A map showing the principal routes of trade and migration from 1840-1850. |
Place Names: Mobile, New York, San Diego, Los Angeles, Boston, Chicago, New Orleans, Houston, Washington D.C.
ISO Topic Categories: boundaries, location, inlandWaters, oceans, transportation
Keywords: Trade and Migration in the 1840's, physical, political, transportation, physical features, country borders, major political subdivisions, railroads, water routes, boundaries, location, inlandWaters, oceans, transportation, Unknown,
Source: Albert Bushnell Hart, L.L.D., The American Nation (New York, NY: Harper and Brothers, 1906) 18
Map Credit: Courtesy The Private Collection of Roy Winkelman