1901. Newsom, John F. (John Flesher), 1869-1928. Relief shown by contours. 'Contour interval 40 feet.' From the 26th Annual report of Department of Geology and Natural Resources of Indiana, 1901. ... Indiana Department of Geology and Natural Resources and William B. Burford.
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1839. Weber, Edward. Illustrated map of Baltimore and Harford counties, 1839. Map includes some geological information regarding the Chesapeake Bay shores. 49.3 x 34.6 ...
1840. Weber, Edward. Illustrative map of Allegany and Washington counties,1840. Includes a geological profile of the Cumberland and National roads. 46 x 20.1 cm; 1 imag...