Arnold Hague

Arnold Hague
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Arnold Hague (December 3, 1840, Boston, Massachusetts – May 14, 1917, Washington, D.C.) was a United States geologist who did many geological surveys in the U.S., of which the best known was that for Yellowstone National Park. He also had assignments in China and Guatemala. He became a member of the U. S. Geological Survey in 1879 when it was first organized.

Hague was the son of William Hague, a clergyman. He graduated from Sheffield Scientific School at Yale University in 1863. He then spent three years in Germany, studying at the universities of Göttingen and Heidelberg, and at the Freiberg Mining Academy.

In 1867 he returned to the United States, and was appointed assistant geologist on the U. S. geological exploration of the 40th parallel under Clarence King. He then went to California, and spent the winter of 1867/68 in Virginia City, Nevada, studying the surface geology of the and the chemistry of the amalgamation process as practised there, and known as the “Washoe process”. The results of this study were published in volume iii. of the report of the exploration, under the title of “Chemistry of the Washoe Process.” He also contributed to the same volume a chapter on the geology of the White Pine mining district, in which there was first brought to notice the great development of Devonian rocks in the Great Basin of Utah and Nevada. In volume ii. — “Descriptive Geology” — of the report of the exploration, which was the joint work of Hague and Samuel F. Emmons, there is given the results of a detailed geological survey across the Cordilleras of North America, from the Great Plains to the Sierra Nevada range in California. This work included a geological atlas of maps and sections, which was completed after a great deal of hardship, the map of the Great Basin being accomplished before the completion of either the Union or Central Pacific Railroad.

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