Browsing Maryland State Sheet Maps & State Map Series by Author "Otton, E.G."
Subregions of Maryland with a brief Description of the Geologic and Hydrologic Factors Pertaining to Subsurface Waste Storage Otton, E.G. (Baltimore: Maryland Geological Survey, 1970)This map is Figure 4 from Otton, E.G., “Geologic and Hydrologic Factors Bearing on Subsurface Storage of Liquid Wastes in Maryland”. Baltimore: Maryland Geological Survey, 1970 (Report of Investigations No. 14).