The videos linked below provide information on The National Map's hydrography products, services, applications, and tools: NHD, WBD, NHDPlus HR, StreamFlow Estimates in NHDPlus HR, and Hydrolink Tool.
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Lesson 15a: The Watershed Boundary Data Set
In this lesson, we will describe the Watershed Boundary Dataset, show how the data are organized, and explain how the data are improved and maintained. Finally, we will show how the data can be accessed by download and as a map service.
Lesson 15b: NHDPlus HR
This lesson will provide a brief overview of the National Hydrography Dataset, Watershed Boundary Dataset and 3D Elevation program. This lesson will also discuss NHDPlus and introduce NHDPlus high resolution and tell you how to get the data.
Lesson 15c: Introduction to the National Hydrography Dataset
This lesson will provide a brief overview of the National Hydrography Dataset (NHD), describe what features make up NHD, show how NHD functions as a national hydrographic network, and provide information on accessing data and additional resources.
Lesson 15f: Stream Flow Estimates in NHDPlus HR
This lesson will cover Stream Flow Estimates in NHDPlus High Resolution. Enhanced Runoff Method, or EROM is the method used to compute estimates of the mean annual flow for the NHDPlus flowline features in the NHDPlus HR network.
Lesson 16: Introduction to the USGS Hydrolink Tool
This video provides basic information about the HydroLink Tool to get you up and running with the basic tool capabilities.