Author: Froelich, A. J. (Albert Joseph), 1929- / Subject: Mines and mineral resources - Yale University Library GeoBlacklight Search Results

Start Over Author Froelich, A. J. (Albert Joseph), 1929- Subject Mines and mineral resources

1. Map showing mineral resources of Montgomery County, Maryland [cartographic material]

1975. 2013-08-27T17:55:39Z. 2013-09-04T19:52:22Z. Froelich, A. J. (Albert Joseph), 1929-. The Survey. English. Public. Maryland, Montgomery County, and Montgomery County (Md.).

2. Map showing mineral resources of the Culpeper Basin, Virginia and Maryland availability and planning for future needs / [cartographic material]

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.