Geological map of the United States / compiled by C.H. Hitchcock and W.P. Blake.

Hitchcock, Charles H. (Charles Henry), 1836-1919

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The Michigan Geological Survey was created by Public Act 20 of 1837. Its purpose was to conduct a geological and mineralogical survey of the state. The state legislature appointed Douglass Houghton the first state geologist (1837). In 1921, the state legislature established the Department of Conservation, and the Michigan Geological Survey became part of that department (Public Act 17 of 1921). The Department of Conservation established the Geological Survey Division circa 1947. In 1968, the dep...

Blake, William P. (William Phipps), 1826-1910

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Geologist, mining engineer and educator; he worked on numerous railroad and mining surveys throughout Europe and the western United States. In 1895, he became professor of geology and mining at the University of Arizona. From 1853 to 1856, he accompanied the Pacific Railroad Expedition. From the description of Blake papers, 1847-1910. (Arizona Historical Society, Southern Arizona Division). WorldCat record id: 37905971 ...

Michigan. Geological Survey Division

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The Michigan Geological Survey was created by Public Act 20 of 1837. Its purpose was to conduct a geological and mineralogical survey of the state. The state legislature appointed Douglass Houghton the first state geologist (1837). In 1921, the state legislature established the Department of Conservation, and the Michigan Geological Survey became part of that department (Public Act 17 of 1921). The Department of Conservation established the Geological Survey Division circa 1947. In 1968, the dep...

Bien, Julius, 1826-1909

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