Category:Almon Harris Thompson

**Almon Harris Thompson**
	American geologist (1839–1906)
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Date of birth	24 September 1839; Stoddard
Date of death	31 July 1906
Place of burial	Arlington National Cemetery;
Country of citizenship	United States of America;
Educated at	Wheaton College;
Occupation	explorer; geologist;
Employer	United States Geological Survey;
Spouse	Ellen Powell Thompson;
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	Q4733874; ISNI: 0000000059405513; VIAF ID: 2773264; GND ID: 1201207711; Library of Congress authority ID: n86844735; Bibliothèque nationale de France ID: 153773052; IdRef ID: 150391331; National Library of Spain ID: XX1714252; J9U ID: 987007272745405171; Open Library ID: OL2555642A
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English: Almon Harris Thompson (September 24, 1839 – July 31, 1906), also known as "A. H. Thompson", was an educator, topographer, geologist, explorer, and Civil War veteran. Often called "The Professor" or simply "Prof", Thompson was second in command of John Wesley Powell's Second Expedition, a federally-funded expedition to explore the Green and Colorado Rivers, Colorado drainage and canyons, and map southern Utah and northern Arizona. Thompson's diary of Powell’s Second Expedition (1871–1875) was originally published in the Utah Historical Quarterly in 1939. Through his work on the Powell expeditions and later as geographer at the US Geological Survey, he was responsible for naming many geographic locations in the west. Thompson is also known for his involvement in the formation of the National Geographic Society.