Missouri water resource region

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The Missouri water resource region is one of 21 major geographic areas, or regions, in the first level of classification used by the United States Geological Survey to divide and sub-divide the United States into successively smaller hydrologic units. These geographic areas contain either the drainage area of a major river, or the combined drainage areas of a series of rivers. [1] [2]

Contents

The Missouri region, which is listed with a 2-digit hydrologic unit code (HUC) of 10, has an approximate size of 520,960 square miles (1,349,300 square kilometers ), and consists of 30 sub-regions, which are listed with the 4-digit HUCs 1001 through 1030.

This region includes the drainage within the United States of: (a) the Missouri River Basin, (b) the Saskatchewan River Basin, and (c) several small closed basins. Includes all of Nebraska and parts of Colorado, Iowa, Kansas, Minnesota, Missouri, Montana, North Dakota, South Dakota, and Wyoming. [3]

The Missouri region, with its 30 4-digit subregion hydrologic unit boundaries. HUC10.jpg
The Missouri region, with its 30 4-digit subregion hydrologic unit boundaries.

List of water resource subregions

Subregion HUC [4] Subregion Name [4] Subregion Description [3] Subregion Location [4] Subregion Size [4] Subregion Map
1001 Saskatchewan subregion The Saskatchewan River Basin within the United States.Montana0,697 sq mi (1,810 km2)
HUC1001 HUC1001.jpg
HUC1001
1002 Missouri Headwaters subregion The Headwaters of the Missouri River Basin above the confluence of and including the Gallatin, Jefferson, and Madison River Basins.Montana and Wyoming.14,100 sq mi (37,000 km2)
HUC1002 HUC1002.jpg
HUC1002
1003 Missouri–Marias subregion The Missouri River Basin below then confluence of the Gallatin, Jefferson, and Madison River Basins to and including the Marias River Basin.Montana20,100 sq mi (52,000 km2)
HUC1003 HUC1003.jpg
HUC1003
1004 Missouri–Musselshell subregion The Missouri River Basin below the confluence of the Marias River Basin to Fort Peck Dam.Montana23,700 sq mi (61,000 km2)
HUC1004 HUC1004.jpg
HUC1004
1005 Milk subregion The Milk River Basin within the United States, including the Wild Horse Lake closed basin.Montana15,300 sq mi (40,000 km2)
HUC1005 HUC1005.jpg
HUC1005
1006 Missouri–Poplar subregion The Missouri River Basin within the United States from Fort Peck Dam to the confluence with the Yellowstone River Basin.Montana10,800 sq mi (28,000 km2)
HUC1006 HUC1006.jpg
HUC1006
1007 Upper Yellowstone subregion The Yellowstone River Basin above the confluence with the Bighorn River Basin.Montana and Wyoming.14,400 sq mi (37,000 km2)
HUC1007 HUC1007.jpg
HUC1007
1008 Big Horn subregion The Big Horn River Basin.Montana and Wyoming.22,800 sq mi (59,000 km2)
HUC1008 HUC1008.jpg
HUC1008
1009 Powder–Tongue subregion The Powder and Tongue River Basins.Montana and Wyoming.18,800 sq mi (49,000 km2)
HUC1009 HUC1009.jpg
HUC1009
1010 Lower Yellowstone subregion The Yellowstone River Basin below the confluence with the Big Horn River Basin, excluding the Tongue and Powder River Basins.Montana and North Dakota.14,000 sq mi (36,000 km2)
HUC1010 HUC1010.jpg
HUC1010
1011 Missouri–Little Missouri subregion The Missouri River Basin below the confluence with the Yellowstone River Basin to Garrison Dam.Montana, North Dakota, South Dakota, and Wyoming.17,300 sq mi (45,000 km2)
HUC1011 HUC1011.jpg
HUC1011
1012 Cheyenne subregion The Cheyenne River Basin above the normal operating pool of Lake Oahe.Montana, Nebraska, South Dakota, and Wyoming.24,300 sq mi (63,000 km2)
HUC1012 HUC1012.jpg
HUC1012
1013 Missouri–Oahe subregion The Missouri River Basin from Garrison Dam to Oahe Dam, excluding the Cheyenne River Basin above the normal operating pool of Lake Oahe.North Dakota and South Dakota.37,400 sq mi (97,000 km2)
HUC1013 HUC1013.jpg
HUC1013
1014 Missouri–White subregion The Missouri River Basin from Oahe Dam to Fort Randall Dam.Nebraska and South Dakota.20,200 sq mi (52,000 km2)
HUC1014 HUC1014.jpg
HUC1014
1015 Niobrara subregion The Niobrara River Basin and the Ponca Creek Basin.Nebraska, South Dakota, and Wyoming.13,900 sq mi (36,000 km2)
HUC1015 HUC1015.jpg
HUC1015
1016 James subregion The James River Basin.North Dakota and South Dakota.21,500 sq mi (56,000 km2)
HUC1016 HUC1016.jpg
HUC1016
1017 Missouri–Big Sioux subregion The Missouri River Basin from Fort Randall Dam to and including the Big Sioux River Basin, but excluding the Ponca Creek, Niobrara River, and James River Basins.Iowa, Minnesota, Nebraska, and South Dakota.13,900 sq mi (36,000 km2)
HUC1017 HUC1017.jpg
HUC1017
1018 North Platte subregion The North Platte River Basin.Colorado, Nebraska, and Wyoming.30,900 sq mi (80,000 km2)
HUC1018 HUC1018.jpg
HUC1018
1019 South Platte subregion The South Platte River Basin.Colorado, Nebraska, and Wyoming.23,900 sq mi (62,000 km2)
HUC1019 HUC1019.jpg
HUC1019
1020 Platte subregion The Platte River Basin below the confluence of the North and South Platte River Basins, excluding the Elkhorn and Loup River Basins.Nebraska8,160 sq mi (21,100 km2)
HUC1020 HUC1020.jpg
HUC1020
1021 Loup subregion The Loup River Basin.Nebraska15,000 sq mi (39,000 km2)
HUC1021 HUC1021.jpg
HUC1021
1022 Elkhorn subregion The Elkhorn River Basin.Nebraska6,950 sq mi (18,000 km2)
HUC1022 HUC1022.jpg
HUC1022
1023 Missouri–Little Sioux subregion The Missouri River Basin below the confluence with the Big Sioux River Basin to the confluence with the Platte River Basin.Iowa, Minnesota, and Nebraska.9,140 sq mi (23,700 km2)
HUC1023 HUC1023.jpg
HUC1023
1024 Missouri–Nishnabotna subregion The Missouri River Basin below the confluence with the Platte River Basin to the confluence with the Kansas River Basin.Iowa, Kansas, Missouri, and Nebraska.13,300 sq mi (34,000 km2)
HUC1024 HUC1024.jpg
HUC1024
1025 Republican subregion The Republican River Basin.Colorado, Kansas, and Nebraska.24,700 sq mi (64,000 km2)
HUC1025 HUC1025.jpg
HUC1025
1026 Smoky Hill subregion The Smoky Hill River Basin.Colorado and Kansas.19,800 sq mi (51,000 km2)
HUC1026 HUC1026.jpg
HUC1026
1027 Kansas subregion The Kansas River Basin, excluding the Republican and Smoky Hill River Basins.Kansas, Nebraska, and Missouri.15,000 sq mi (39,000 km2)
HUC1027 HUC1027.jpg
HUC1027
1028 Chariton–Grand subregion The Chariton, Grand, and Little Chariton River Basins.Iowa and Missouri.10,900 sq mi (28,000 km2)
HUC1028 HUC1028.jpg
HUC1028
1029 Gasconade–Osage subregion The Gasconade and Osage River Basins.Kansas and Missouri.18,400 sq mi (48,000 km2)
HUC1029 HUC1029.jpg
HUC1029
1030 Lower Missouri subregion The Missouri River Basin below the confluence with the Kansas River Basin to the confluence with the Mississippi River, excluding the Chariton, Gasconade, Grand, and Osage River Basins.Kansas and Missouri.10,200 sq mi (26,000 km2)
HUC1030 HUC1030.jpg
HUC1030

See also

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References

  1. ↑ "Science in Your Watershed - Locate Your Watershed". USGS . Retrieved 2016-10-12.PD-icon.svg This article incorporates text from this source, which is in the public domain .
  2. ↑ "Hydrologic Unit Maps". USGS . Retrieved 2016-10-12.PD-icon.svg This article incorporates text from this source, which is in the public domain .
  3. 1 2 "Boundary Descriptions and Names of Regions, Subregions, Accounting Units and Cataloging Units". USGS . Retrieved 2016-10-12.PD-icon.svg This article incorporates text from this source, which is in the public domain .
  4. 1 2 3 4 McManamay RA, Bevelhimer MS, Kao SC, Yaxing W, Martinez-Gonzalez M, Samu N (2013). "National Hydropower Asset Assessment Environmental Attribution". USGS-Oak Ridge National Laboratory . Retrieved 2016-10-12.PD-icon.svg This article incorporates text from this source, which is in the public domain .
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