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CDATribeCommunityBaseMapUTM - Level 12 - 144K - Hydrography 144K - NHDFlowline 144K

cdatribe-nsn.gov
  • Added 17 Sep 2016
  • Updated 19 Feb 2017
  • 39 Views
  • 0 Downloads

The National Hydrography Dataset (NHD) is a feature-based database that interconnects and uniquely identifies the stream segments or reaches that make up the nation's surface water drainage system. NHD data was originally developed at 1:100,000-scale and exists at that scale for the whole country. This high-resolution NHD, generally developed at 1:24,000/1:12,000 scale, adds detail to the original 1:100,000-scale NHD. (Data for Alaska, Puerto Rico and the Virgin Islands was developed at high-resolution, not 1:100,000 scale.) Local resolution NHD is being developed where partners and data exist. The NHD contains reach codes for networked features, flow direction, names, and centerline representations for areal water bodies. Reaches are also defined on waterbodies and the approximate shorelines of the Great Lakes, the Atlantic and Pacific Oceans and the Gulf of Mexico. The NHD also incorporates the National Spatial Data Infrastructure framework criteria established by the Federal Geographic Data Committee.

© See dataset specific metadata.

This layer is sourced from gis.cdatribe-nsn.gov.

Information

Copyright Copyright may apply. Please check the source for more information.
RegionsIdaho, Montana, Washington
MetadataDublin Core

Technical Details

Layer ID 17003
Data type Vector linestring
Feature count 364414
Attributes LengthKM, FCode, FlowDir, InNetwork, STLength, Enabled, GNIS_ID, Permanent_Identifier, MainPath, WBArea_Permanent_Identifier, GNIS_Name, FType, FDate, VisibilityFilter, Resolution, ReachCode
Services Vector Query API

History

Sourcegis.cdatribe-nsn.gov
Last updated 8 months ago
Last checked 2 weeks ago
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