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NHDPlus California Data (Vector Processing Unit 18)

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Map of California (Vector Processing Unit 18)

Download & Installation instructions

NHDPlusV2 data is distributed by the major drainage areas of the United States. 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.

Drainage Area ID CA
VPU 18
RPUs 18a, 18b, 18c

The following links exit the site Exit

NHDPlusV2 Distribution Filename Key

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)