5-545: Fort Union may refer to: Fort Union Formation , an economically important geologic formation in the northwestern United States Fort Union National Monument , site of a U. S. Army fort in New Mexico from 1851 to 1891 Fort Union Trading Post National Historic Site , a trading post of the American Fur Company, operating between 1828 and 1867 Fort Union ,
10-644: A major commercial area in Salt Lake County, Utah Fort Union (Wisconsin) See also [ edit ] Fork Union, Virginia Topics referred to by the same term [REDACTED] This disambiguation page lists articles associated with the title Fort Union . If an internal link led you here, you may wish to change the link to point directly to the intended article. Retrieved from " https://en.wikipedia.org/w/index.php?title=Fort_Union&oldid=951735539 " Category : Disambiguation pages Hidden categories: Short description
15-533: Is different from Wikidata All article disambiguation pages All disambiguation pages Fort Union Formation The Fort Union Formation is a geologic unit containing sandstones, shales, and coal beds in Wyoming , Montana , and parts of adjacent states. In the Powder River Basin , it contains important economic deposits of coal , uranium , and coalbed methane . The Fort Union
20-405: Is mostly of Paleocene age and represents a time of extensive swamps as well as fluvial and lacustrine conditions. The rocks are more sandy in southwestern Wyoming and more coal-bearing in northeast Wyoming and southeast Montana, reflecting a general change from rivers and lakes in the west to swamps in the east, but all three environments were present at various times in most locations. Coal in
25-753: The Fort Union in the Powder River Basin occurs mainly in the Tongue River Member, where as many as 32 coal seams total more than 300 feet in thickness. One such bed, the Wyodak Coal near Gillette, Wyoming , is as much as 110 feet (34 m) thick. Most of the coals in the Fort Union Formation are ranked subbituminous . A partial ornithurine coracoid bone found in this formation is identical to others found in
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