An official website of the United States government.

This is not the current EPA website. To navigate to the current EPA website, please go to www.epa.gov. This website is historical material reflecting the EPA website as it existed on January 19, 2021. This website is no longer updated and links to external websites and some internal pages may not work. More information »

NHDPlus South Atlantic North Data (Vector Processing Unit 03N)

You may need additional software to view some of the links on this page. See EPA’s Free Viewers and Readers page.The links will vary in file size.

Each major drainage area of the United States contains a suite of NHDPlusV2 data. Within a drainage area, the NHDPlusV2 data components are packaged into compressed files either by Vector Processing Unit (VPU) or Raster Processing Unit (RPU). A drainage area is composed of one or more VPUs and a VPU is composed of one or more RPUs.

South Atlantic North
Drainage Area ID SA
VPU 03N
RPUs 03a, 03b

The following links exit the site Exit

NHDPlusV2 Distribution Filename Key

NHDPlusV2nn_<dd>_<VPUid>_componentname_<vv>
or
NHDPlusV2nn_<dd>_<VPUid>_<RPUid>_componentname_<vv>
where:

  • V2nn is Version (2) and subversion (nn) of the NHDPlusV2 data model
  • dd is the drainage area identifier
  • VPUid is the VPU identifier
  • RPUid is the RPU identifier
  • Componentname is the name of the NHDPlusV2 component contained in the file
  • vv is the data content version, 01, 02, ... for the component

Additional information about the NHDPlusV2 content and distribution format
can be found in the "NHDPlusV2 User Guide" (182 pp, 4.3 MB, About PDF)