Caribbean water resource region

The Caribbean 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]

The Caribbean region, which is listed with a 2-digit hydrologic unit code (HUC) of 21, has an approximate size of 3,582 square miles (9,280 square kilometers), and consists of 3 subregions, which are listed with the 4-digit HUCs 2101 through 2103.[3] This region includes the drainage within: (a) the Commonwealth of Puerto Rico; (b) the Virgin Islands of the United States; and (c) other United States Caribbean outlying areas. Includes Caribbean land areas over which the United States has some degree of interest, jurisdiction, or sovereignty.[3]

The Caribbean region, with two of its three 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
2101 Puerto Rico subregionThe drainage and associated waters within the Commonwealth of Puerto Rico.Puerto Rico3,480 sq mi (9,000 km2)
HUC2101
HUC2101
2102 Virgin Islands subregionThe drainage and associated waters within the Virgin Islands of the United States.U.S. Virgin Islands133 sq mi (340 km2)
HUC2102
HUC2102
2103 Caribbean Outlying Areas subregionThe drainage and associated waters within the Canal Zone, Navassa Island, and Rancador and Serrana Banks.Canal Zone, Navassa Island, and Rancador and Serrana Banks.650 sq mi (1,700 km2)

See also

References
  1. "Science in Your Watershed - Locate Your Watershed". USGS. Retrieved 2016-10-12.Public Domain This article incorporates text from this source, which is in the public domain.
  2. "Hydrologic Unit Maps". USGS. Retrieved 2016-10-12. Public Domain This 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. USGS. Retrieved 2016-10-12. Public Domain This article incorporates text from this source, which is in the public domain.
  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. Public Domain This article incorporates text from this source, which is in the public domain.
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