16611. Soil map, Boonville sheet
1904. cartographer., Mangum, A. W., and Neill, N. P. (Nelson Prentice). Detached from: Soil survey of the Boonville area, Indiana / A.W. Mangum and N.P. Neill. In 36th Annual report of Deptartment of Geology and Natural... Indiana Department of Geology and Natural Resources and William B. Burford.