Guideline for Hydrography Acquisition Representation, Extraction, Attribution, and Delineation Rules Update for Elevation-Derived Hydrography Inclusion or Omission of NHD Waterbody Features (version 2)
Detailed Description
These are official USGS guidelines and supplement published specifications concerning Elevation-Derived Hydrography Connectors through Infrastructure Areas. Please see the Elevation-Derived Hydrography Specifications website for more information. Official published specifications may supersede these guidelines in the future.
Sources/Usage
Public Domain.