Rare geology map and book, Hayden, Ferdinand V.; Notes Explanatory of a Map and Section Illustrating the Geological Structure of the Country Bordering on the Missouri River, from the Mouth of the Platte River to Fort Union.
Item Number: Book 242-C
Hayden, Ferdinand V.; Notes Explanatory of a Map and Section Illustrating the Geological Structure of the Country Bordering on the Missouri River, from the Mouth of the Platte River to Fort Union. Academy of Natural Sciences, Philadelphia, 1857. Octavo, pp. 10, folded hand-colored folded map and profile.
The report is complete and is not extracted from the Academy Proceedings volume. It has its own title page. The work is in a blue cloth with gilt spine titles. The binding is tight and clean, the text and map are very clean. In very good condition.
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This is Hayden's first report as the official geologist on the Warren Expedition. He provides a summation of the stratigraphy and structure along a line from the Missouri River to Fort Union. The partially hand-colored map is his first attempt at a geological map of a portion of the territory. The most striking feature on the map is the lack of detail paid to the Black Hills. The region of the Black Hills is noted but the geology is lacking on this early map.
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