Blue line print. _x000d_ "Base prepared from Bloomington, Clear Creek, Stanford and Whitehall topographic quadrangles, U.S.G.S, by the Indiana Geological Survey, 1964." "Cavern maps by members of several organizations, B.I.G., C.I.G., W.C.G., R,P.I., & I.U.S.C.", Imprint: [Place of publication not identified] : [publisher not identified], [1968?], Scale: 1:6,000; Dimensions: 91 x 92 cm, Coordinates: W0864058 W0863422 N0390956 N0390443
Powell, Richard L. (1968). Garrison Chapel Karst Area, Monroe County Indiana. [publisher not identified]. https://purl.dlib.indiana.edu/iudl/images/VAC3073/VAC3073-M-00797 (map)