General Connected Section of the rocks exposed on the North shore of Lake Superior: between Fond du Lac Superieur and Pigeon Point . .

Richard Owen

Edité par U. S. Government Survey, Washington, D. C., 1852

Richard Owen. General Connected Section of the Rocks Exposed on the North Shore of Lake Superior; Between Fond du Lac Superieur and Pigeon Point as Observed During the Geological Surveys of Wisconsin & Minnesota Territory, in the Years 1848, 49 & 50, Under the Direction of David Dale Owen, M. D. United States Geologist. 1852. *** An engraved lithograph with original hand coloring. The information on this geological map was obtained during a U. S. Government Survey of Wisconsin and Minnesota Territories, 1848-50. Depicted at top is the northern shore line of Lake Superior in the far northeastern corner of Minnesota, and underneath, in color, the underlying rock structures. At the time this map was made civilization had not yet arrived, thus no place names. *** Clean image with light to medium browning from offsetting. Several vertical folds, as issued, reinforced on verso with clear archival tape to prevent separations. Blank verso. Will be shipped folded. *** The sheet is 12.25 inches high by 52.75 inches. The image is 10 inches high by 51 inches. N° de réf. du vendeur M5019

Détails bibliographiques

Titre : General Connected Section of the rocks ...
Éditeur : U. S. Government Survey, Washington, D. C.
Date d'édition : 1852
Reliure : No Binding
Etat : Very Good