1942. 2011-12-12T21:28:45Z. 2022-03-29T20:39:36Z. Geological Survey (U.S.). U.S. Geological Survey. English. Public. Delaware, Maryland, and Pennsylvania.
Search Results
1920. 2013-03-15T13:09:18Z. 2013-03-15T13:09:18Z. Bascom, F. (Florence), 1862-1945. United States Geological Suvery. English. Public. Maryland, Cecil County, Delaware, New Castle County, New Jersey, Salem County, Pennsylvania, and Chester County.
1866. 2013-10-02T14:37:08Z. 2013-10-02T14:37:08Z. United States Coast Survey, issuing body. U.S. Coast Survey. English. cartographic image. Public. Delaware, Atlantic Coast., New Jersey, Delaware Bay Region (Del. and N.J.), Delaware Bay (Del. and N.J.), Atlantic Coast (Del.), and Atlantic Coast (N.J.).
1866. 2013-09-30T18:05:45Z. 2013-09-30T18:05:45Z. United States Coast Survey, issuing body. Coast Survey Office. English. Public. Chesapeake Bay (Md. and Va.), Delaware Bay (Del. and N.J.), Maryland, Delaware, Virginia, and New Jersey.
1966. 2018-05-29T17:57:58Z. 2018-05-29T17:57:58Z. Spoljaric, Nenad. Delaware Geological Survey. English. cartographic image. Public. Delaware and Delaware.
1976. 2018-05-29T17:49:08Z. 2018-05-29T17:49:08Z. Pickett, Thomas E. Del. Geological Survey. English. cartographic image. Public. Delaware and Delaware.
1987. 2018-05-11T18:55:29Z. 2018-09-05T19:36:27Z. Fuller, H. Kit. Dept. of the Interior, U.S. Geological Survey. English. cartographic image. Public. Maryland, Delaware, Washington (D.C.), Delaware., and Maryland.
2007. 2008-01-08T13:56:33Z. 2011-03-29T00:20:26Z. Ramsey, Kelvin W. Delaware Geological Survey. English. Public. Delaware and Kent County.
2001. 2008-09-08T18:55:23Z. 2011-03-25T22:58:31Z. Ramsey, Kelvin W. Del. Geological Survey, University of Del. English. Public. Delaware, Ellendale Region, and Milton Region.
2010. 2010-06-09T17:24:17Z. 2011-03-29T16:17:46Z. Ramsey, Kelvin W. Del. Geological Survey. English. Public. Delaware and Sussex County.
