Author: Otton, E. G. (Edmond George), 1918- - Yale University Library GeoBlacklight Search Results

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1. Hydrogeologic atlas, Manchester quadrangle, Carroll County, Maryland [cartographic material]

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.

2. Hydrogeologic atlas, Phoenix quadrangle, Baltimore and Harford Counties, Maryland

1983. 2016-06-21T14:10:03Z. 2016-06-21T14:10:03Z. Otton, E. G. (Edmond George), 1918-. Maryland Geological Survey. English. cartographic image. Public. Maryland, Baltimore County, Harford County, Baltimore County., and Harford County.