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Overview of the National Hydrography Dataset and The National Map -- Part I
The Role of Hydrography in The National Map
USGS Hydrography Webinar Series
Positional Accuracy of the National Hydrography Dataset- Part II
What is the National Hydrography Dataset
USGS Hydrography Community Call: Updating historical flow permanence classifications
Navigating the NHD Network
Positional Accuracy of the National Hydrography Dataset - Part I
Hydrography Downloadable Data GeoPackage Format
Dec 2024 USGS Hydrography Community Call: Delivering and Using 3D Hydrography Program (3DHP) Data
Lesson 15b - NHDPlus HR
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Last Updated: October 15, 2026
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Summary
Tim Schaub presents a prototype application OpenGeo created for the This lesson will provide a brief overview of the This video explains how to download the watershed boundaries from Dewberry Associate and Senior Project Manager Sue Hoegberg explains the Hydrographic features on topographic maps and the The 3D Hydrography Program (3DHP)