What is the Huc?

In the United States, watersheds have been numbered since the 1970’s using an 8-digit system known as a Hydrologic Unit Code (HUC). This system provides what is essentially a watershed address, and in many cases provides a convenient way to locate USGS water data for your area of interest.

What is a Huc in hydrology?

A Hydrologic Unit Code (HUC) is a unique code, consisting of two to eight digits, used to identify watersheds based on the United States Geological Survey’s four-level classification system.

What are Huc boundaries?

A hydrologic unit is a drainage area delineated to nest in a multi-level, hierarchical drainage system. Its boundaries are defined by hydrographic and topographic criteria that delineate an area of land upstream from a specific point on a river, stream or similar surface waters.

What is Huc data?

Hydrologic unit codes (HUC) are developed using a progressive two-digit system where each successively smaller areal unit is identified by adding two digits to the identifying code the smaller unit is nested within. WBD contains eight levels of progressive hydrologic units identified by unique 2- to 16-digit codes.

What is Huc 12 watershed?

HUC 8 maps the subbasin level, analogous to medium-sized river basins (about 2200 nationwide, pictured in red in the image); and HUC 12 is a more local sub-watershed level that captures tributary systems (about 90,000 nationwide used by EnviroAtlas to display national metrics for the conterminous U.S.).

What is a Huc 14?

HUC 14 or “hydrologic unit code 14” means an area within which water drains to a particular receiving surface water body, also known as a subwatershed, which is identified by a 14-digit hydrologic unit boundary designation, delineated within New Jersey by the United States Geological Survey.

What does Huc 12 mean?

HUC 12 watershed means a hydrological unit code consisting of a sequence of 12 numbers identifying a hydrological feature like a river, river reach, or lake or an area like a drainage basin.

What is Huc 8 watershed?

What is a Huc 10?

HUC – 10 WATERSHED Typically from 40 to 250 K Acres (62 to 390 mi²) Work continues per new Interagency Guidelines presented to Federal Geographic Date Committee on December 2000. (Was formerly called HUC-11). Called 5th Level or Watershed 5th Level.

What does HUC stand for?

Hydrologic Unit Codes: HUC 4, HUC 8, and HUC 12 The Watershed Boundary Dataset (WBD) maps the full areal extent of surface water drainage for the U.S. using a hierarchical system of nesting hydrologic units at various scales, each with an assigned hydrologic unit code (HUC).

How do I Find my HUC in North Carolina?

Find Your HUC in North Carolina One click away from finding an 8, 10, or 12 digit Hydrologic Unit Code in North Carolina. For HUCs in other states, please search for USGS HUC in your internet browsers.

How can I find out what HUC a lake is in?

USGS Geographic Names Information System (GNIS) – here you can find the location of a lake, have it mapped, and through a link to the EPA Surf your watershed site, find out what HUC it is in. A great tool; we use it all the time.

What are hydrologic unit codes (HUCs)?

Hydrologic Unit Codes (HUCs) Explained. Watersheds are delineated by USGS using a nationwide system based on surface hydrologic features. This system divides the country into 21 regions (2-digit), 222 subregions (4-digit), 370 basins (6-digit), 2,270 subbasins (8-digit), ~20,000 watersheds (10-digit), and ~100,000 subwatersheds (12-digit).