Part of the territory served by Northern States Power Company

1926

Byllesby Engineering and Management Corporation

1:8m

Map of Iowa

1849

Mitchell, Samuel Augustus

1:1m

Iowa.

1856

Colton, G.W.

1:1m

Iowa.

1845

Tanner, Henry S.

1:2m

Iowa.

1882

Cram, George Franklin

1:2m

County Seats in Iowa

1866

Larrance, Isaac, 1804-1896

1:5m

Sectional Map of the State of Iowa

1869

Chapman, Silas

1:650k

Wisconsin Central Railroad Lands

1881

C. Colby

Iowa.

1852

Grassl, J. (Joseph)

1:2m

Karte von Iowa

1860

Meyer, J.