Author: Martin, Helen M. (Helen Mandeville), 1889-1973 - Yale University Library GeoBlacklight Search Results

Start Over Author Martin, Helen M. (Helen Mandeville), 1889-1973

1. Map of the surface formations of the northern peninsula of Michigan

1957. 2011-02-14T18:40:32Z. 2015-10-21T15:20:18Z. Martin, Helen M. (Helen Mandeville), 1889-1973. Michigan Geological Survey Division. English. Public. Michigan and Upper Peninsula.

2. Map of the surface formations of the southern peninsula of Michigan [map]

1955. 2002-06-01T04:00:00Z. 2011-03-10T21:14:43Z. Martin, Helen M. (Helen Mandeville), 1889-1973. Michigan Geological Survey Division. English. Public. Michigan.

3. The centennial geological map of the southern peninsula of Michigan

1936. 2018-04-20T19:38:07Z. 2018-04-20T19:38:07Z. Martin, Helen M. (Helen Mandeville), 1889-1973. Geological Survey Division. English. cartographic image. Public. Michigan, U.S., Michigan., and États-Unis.