Shows good, fair, and light oil territory, gas wells, dry and salt water territory, undrilled area, and pumping stations. Detached from: 25th Annual report of the Department of Geology and Natural Resources of Indiana, 1900. 'January 1, 1901.' Scale 1:126,720. 2 miles = 1 in. By W.S. Blatchley, state geologist.
Blatchley, W. S. (Willis Stanley),1859-1940
Indiana Department of Geology and Natural Resources and William B. Burford