Detached from: Soil survey of Greene County, Indiana / W.E. Tharp and Charles J. Mann. In 36th Annual report of Department of Geology and Natural Resources, Indiana. 'U.S. Dept. of Agriculture, Bureau of Soils.' Scale approximately 1:80,000 Soils surveyed by W.E. Tharp and Charles J. Mann, 1906.
Tharp, W. E. (William Edgar) and Mann, Charles J.
Indiana Department of Geology and Natural Resources and William B. Burford