During the 1850's Indiana maintained much growth. So many immigrated to Indiana during the decade, that it became the nation’s fourth largest state by 1860, according to population.
This map, published in 1860 by Joseph Hutchins Colton, shows counties, towns, villages, post offices and mills. Displayed are waterways, railroads, plank roads, common roads and canals.
Included on the map is a county statistics of population chart and a progress of population chart.