Thompson River (Montana)

Last updated
Thompson River
River
Country United States
State Montana
County Sanders County
Source
 - locationRocky Mountains, Montana
 - elevation3,337 ft (1,017 m) [1]
 - coordinates 48°0′52″N115°11′27″W / 48.01444°N 115.19083°W / 48.01444; -115.19083   [2]
Mouth Clark Fork
 - location Thompson Falls, Montana
 - elevation2,405 ft (733 m) [3]
 - coordinates 47°34′37″N115°14′23″W / 47.57694°N 115.23972°W / 47.57694; -115.23972 Coordinates: 47°34′37″N115°14′23″W / 47.57694°N 115.23972°W / 47.57694; -115.23972   [2]
USA Montana relief location map.jpg
Red pog.svg
Location of the mouth of the Thompson River in Montana

The Thompson River is a tributary of the Clark Fork in the U.S. state of Montana. It is part of the Columbia River basin, as Clark Fork is a tributary of the Pend Oreille River, which is a tributary of the Columbia River.

Tributary stream or river that flows into a main stem river or lake

A tributary or affluent is a stream or river that flows into a larger stream or main stem river or a lake. A tributary does not flow directly into a sea or ocean. Tributaries and the main stem river drain the surrounding drainage basin of its surface water and groundwater, leading the water out into an ocean.

U.S. state constituent political entity of the United States

In the United States, a state is a constituent political entity, of which there are currently 50. Bound together in a political union, each state holds governmental jurisdiction over a separate and defined geographic territory and shares its sovereignty with the federal government. Due to this shared sovereignty, Americans are citizens both of the federal republic and of the state in which they reside. State citizenship and residency are flexible, and no government approval is required to move between states, except for persons restricted by certain types of court orders. Four states use the term commonwealth rather than state in their full official names.

Montana State of the United States of America

Montana is a landlocked state in the Northwestern United States. Montana has several nicknames, although none are official, including "Big Sky Country" and "The Treasure State", and slogans that include "Land of the Shining Mountains" and more recently "The Last Best Place".

Contents

The Thompson River is named in honor of David Thompson.

David Thompson (explorer) British-Canadian fur trader, surveyor, and map-maker

David Thompson was a British-Canadian fur trader, surveyor, and map-maker, known to some native peoples as Koo-Koo-Sint or "the Stargazer." Over Thompson's career, he travelled some 90,000 kilometres (56,000 mi) across North America, mapping 4.9 million square kilometres of North America along the way. For this historic feat, Thompson has been described as the "greatest land geographer who ever lived."

Course

The Thompson River originates in Upper Thompson Lake and flows generally south to join Clark Fork near the town of Thompson Falls.

Thompson Falls, Montana City in Montana, United States

Thompson Falls is a city in and the county seat of Sanders County, Montana, United States. The population was 1,313 at the 2010 census.

See also

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References

  1. Source elevation derived from Google Earth search using GNIS source coordinates.
  2. 1 2 U.S. Geological Survey Geographic Names Information System: Thompson River
  3. Mouth elevation derived from Google Earth search using GNIS mouth coordinates.