1836. A set of digitized microfilm of manuscript maps of Iowa townships. Individual maps in the set may include: Native American villages and fields; the...
1930. Iowa. State Planning Board. Committee on Transportation. 1 map black line ; 83 x 114 cm Iowa state plan. "Project 1036." "1036-5.". Iowa. State Planning Board.
1930. Iowa. State Planning Board. Committee on Transportation. 1 map black line ; 84 x 114 cm Negative. "Iowa state plan." "Project 1036.". Iowa. State Planning Board.