Shannon, C. W. (Charles William),1879-1934 and Wilson, R. C. (Reginald Charles)
Shows public roads and railroads. Detached from: A soil survey of Vanderburgh, Gibson, and Pike, and parts of Warrick and Spencer counties / Chas. W. Shannon. In 34th Annual report of the Indiana Department of Geology and Natural Resources. 'U.S. topographic sheets; state geological maps; field work 1909.' Scale approximately 1:126,720 C.W. Shannon, R.C. Wilson.