Sections on the Missouri River, from No. 20 M, to No. 40 M.

1852

Owen, David Dale

Iowa -- Physical-Political

1940

Blair, R. Baxter

1:500k

Southern Michigan.

1878

Colton, G. Woolworth

1:305k

Iowa.

1924

Rand McNally and Company

A geological map of Iowa

1894

Keyes, Charles Rollin

Iowa.

1879

Rand McNally and Company

1:1m

Rand McNally Road map: Iowa

1939

Rand McNally and Company

1:1m

Iowa.

1874

Colton, G.W.

1:950k

Iowa.

1869

Colton, G.W.

1:950k

Shell Highway Map of Iowa.

1956

Shell Oil Company

1:887k