List Of Longest Rivers Of The United States (by Main Stem)
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List Of Longest Rivers Of The United States (by Main Stem)
The longest rivers of the United States include 38 that have main stem In hydrology Hydrology (from Ancient Greek, Greek wikt:ὕδωρ, ὕδωρ, ''hýdōr'' meaning "water" and wikt:λόγος, λόγος, ''lógos'' meaning "study") is the scientific study of the movement, distribution, and management of wat ...s of at least long. The main stem is "the primary downstream segment of a river, as contrasted to its tributaries". The United States Geological Survey The United States Geological Survey, abbreviated USGS and formerly simply known as the Geological Survey, is a scientific government agency, agency of the Federal government of the United States, United States government. The scientists of the ... (USGS) defines a main-stem segment by listing coordinates for its two end points, called the ''source'' and the ''mouth''. Some well-known rivers like the Atchafalaya, Willamette Willamette ( ), from the Clackamas language of the Columbia River, Oregon, can refer ...
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