Shows counties covered by a U.S. soil survey or a state soil survey. Detached from: Glaciation and soils / Edward Barrett. In Thirty-sixth annual report of Department of Geology and Natural Resources, Indiana, 1911. Indianapolis: Wm. B. Burford, 1912. Page 11.
Imprint: [Indianapolis] : [Department of Geology and Natural Resources, Indiana], [1912]
Dimensions: 24 x 18 cm