1. Phelps's national map of the United States : a travellers' guide : embracing the principal rail roads, canals, steam boat & stage routes, throughout the Union Maps University Of Minnesota Public content 1848. Atwood, John M., approximately 1818-. This map of the United States shows the country as it was in 1848, before the massive territorial expansion that followed the War with Mexico.; Pri... Ensigns & Thayer (New York), 1845.