1997. Swithinbank, Williams, Ferrigno. Projection: Polar Stereographic Projection: Standard Parallel -71º; Series: USGS Geologic Investigations Series. United States Geological Survey.
Search Results
1997. Frushour, Samuel S., Harper, Denver, Kersey, Rea Williams, and Powell, Richard L. This map data was compiled in 1997 from information available at the time, but was unpublished until until 2002; the map does not reflect any chang... Indiana Geological Survey.
1997. Please note ... only major highway and interstate improvement projects are included in this brochure. Information is accurate as of February 1, 199... Indiana Dept. of Transportation.
1997. Ault, Curtis H. Relief shown by contours.; Coordinates printed at top and lower margin are incorrect.; Includes index map, text, and sectionized township diagram. ... Indiana University, Indiana Geological Survey.