Author: Duigon, Mark T. / Spatial Coverage: Maryland - Yale University Library GeoBlacklight Search Results

1. Hampstead quadrangle--hydrogeology [cartographic material]

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.

2. Hydrogeologic atlas, Ellicott City quadrangle, Baltimore and Howard counties, Maryland [cartographic material]

1983. 2016-06-21T14:06:25Z. 2016-09-26T17:42:51Z. Duigon, Mark T. State of Md., Dept. of Natural Resources, Md. Geological Survey. English. cartographic image. Public. Maryland and Ellicott City Region.

3. Hydrogeologic atlas, New Freedom quadrangle, Baltimore County, Maryland [cartographic material]

1983. 2016-06-21T14:02:17Z. 2016-09-26T17:42:51Z. Duigon, Mark T. State of Md., Dept. of Natural Resources, Md. Geological Survey. English. cartographic image. Public. Pennsylvania, New Freedom Region, Maryland, and Parkton Region.

4. Lineboro quadrangle--hydrogeology [cartographic material]

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.