1981. 2016-06-21T13:27:53Z. 2016-09-26T17:42:51Z. Duigon, Mark T. State of Md., Dept. of Natural Resources, Md. Geological Survey. English. cartographic image. Public. Maryland and Hampstead Region.
Search Results
1981. 2016-06-21T13:59:06Z. 2016-09-26T17:42:51Z. Williams, James Frank, 1944-. Md. Geological Survey. English. cartographic image. Public. Maryland and Finksburg Region.
1981. 2016-06-21T13:39:10Z. 2016-09-26T17:42:51Z. Otton, E. G. (Edmond George), 1918-. Md. Geological Survey. English. cartographic image. Public. Maryland and Manchester Region.
1981. 2016-06-21T13:34:08Z. 2016-09-26T17:42:51Z. Duigon, Mark T. State of Md., Dept. of Natural Resources, Md. Geological Survey. English. cartographic image. Public. Maryland and Lineboro Region.
1981. 2016-06-21T13:35:44Z. 2016-09-26T17:42:51Z. Weigle, James M. (James Montgomery), 1919-1994. Dept. of Natural Resources, Md. Geological Survey. English. cartographic image. Public. Pennsylvania, Littlestown Region, Maryland, and Silver Run Region.
1981. 2023-02-10T22:34:18Z. 2023-02-14T23:01:58Z. Geological Survey (U.S.). The Survey. English. cartographic image. Public. Maryland and Maryland.
1981. 2002-06-01T04:00:00Z. 2023-02-11T04:04:30Z. Geological Survey (U.S.). The Survey. English. cartographic image. Public. Maryland.
1981. 2015-07-01T15:04:50Z. 2015-07-14T22:10:20Z. Froelich, A. J. (Albert Joseph), 1929-. U.S. Geological Survey. English. cartographic image. Public. Maryland, Culpeper Basin, and Virginia.
9. Map showing the potentiometric surface of the Aquia aquifer, May 19-23, 1980 [cartographic material]
1981. 2002-06-01T04:00:00Z. 2023-01-13T04:04:30Z. Geological Survey (U.S.). The Survey. English. cartographic image. Public. Maryland.
1981. 2002-06-01T04:00:00Z. 2023-02-11T04:04:30Z. Geological Survey (U.S.). The Survey. English. cartographic image. Public. Maryland.