J.H. Colton & Co.1 color map54 x 65 cm, on sheet 65 x 76 cm, folded in cover (15 cm)Scale approximately 1:885,000JPEGui:sheetmaps_77engJ.H. ColtonPublicColton's township map of the state of Iowa: compiled from the United States surveys & other authentic sources, 1855MapsIowa1850-1860University of Iowa