Upper Colorado water resource region

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The Upper Colorado 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 Upper Colorado region, which is listed with a 2-digit hydrologic unit code (HUC) of 14, has an approximate size of 113,347 square miles (293,570 square kilometers ), and consists of 8 subregions, which are listed with the 4-digit HUCs 1401 through 1408. [3]

This region includes the drainage of: (a) the Colorado River Basin above the Lee Ferry compact point which is one mile below the mouth of the Paria River; and (b) the Great Divide closed basin. Includes parts of Arizona, Colorado, New Mexico, Utah, and Wyoming. [4]

The Upper Colorado region, with its 8 4-digit subregion hydrologic unit boundaries. HUC14.jpg
The Upper Colorado region, with its 8 4-digit subregion hydrologic unit boundaries.

List of water resource subregions

Subregion HUC [5] Subregion Name [5] Subregion Description [4] Subregion Location [5] Subregion Size [5] Subregion Map
1401 Colorado headwaters subregion The Colorado River Basin to but excluding the Bitter Creek Basin, and excluding the Gunnison River Basin.Colorado and Utah.9,730 sq mi (25,200 km2)
HUC1401 HUC1401.jpg
HUC1401
1402 Gunnison subregion The Gunnison River Basin.Colorado7,930 sq mi (20,500 km2)
HUC1402 HUC1402.jpg
HUC1402
1403 Upper Colorado–Dolores subregion The Colorado River Basin from and including the Bitter Creek Basin to the confluence with the Green River Basin.Colorado and Utah.8,250 sq mi (21,400 km2)
HUC1403 HUC1403.jpg
HUC1403
1404 Great Divide – Upper Green subregion The Green River Basin above the confluence with the Yampa River Basin; and the Great Divide closed basin.Utah and Wyoming.20,600 sq mi (53,000 km2)
HUC1404 HUC1404.jpg
HUC1404
1405 White–Yampa subregion The White and Yampa River Basins.Colorado, Utah, and Wyoming.13,100 sq mi (34,000 km2)
HUC1405 HUC1405.jpg
HUC1405
1406 Lower Green subregion The Green River Basin below the confluence with the Yampa River Basin, but excluding the Yampa and White River Basins.Colorado and Utah.14,400 sq mi (37,000 km2)
HUC1406 HUC1406.jpg
HUC1406
1407 Upper Colorado–Dirty Devil subregion The Colorado River Basin below the confluence with the Green River Basin to the Lee Ferry compact point, but excluding the San Juan River Basin.Arizona and Utah.13,500 sq mi (35,000 km2)
HUC1407 HUC1407.jpg
HUC1407
1408 San Juan subregion The San Juan River Basin.Arizona, Colorado, New Mexico, and Utah.24,600 sq mi (64,000 km2)
HUC1408 HUC1408.jpg
HUC1408

See also

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References

  1. ↑ "Science in Your Watershed - Locate Your Watershed". USGS . Retrieved 2016-10-12.PD-icon.svgThis article incorporates text from this source, which is in the public domain.
  2. ↑ "Hydrologic Unit Maps". USGS . Retrieved 2016-10-12.PD-icon.svgThis article incorporates text from this source, which is in the public domain.
  3. ↑ "Boundary Descriptions and Names of Regions, Subregions, Accounting Units and Cataloging Units". water.usgs.gov. Retrieved 2018-09-15.
  4. 1 2 "Boundary Descriptions and Names of Regions, Subregions, Accounting Units and Cataloging Units". USGS . Retrieved 2016-10-12.PD-icon.svgThis article incorporates text from this source, which is in the public domain.
  5. 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.svgThis article incorporates text from this source, which is in the public domain.
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