ARCGIS : How to delineate watershed using ARC HYDRO?

The purpose of this video is to illustrate, step-by-step, how to use the major functionalities available in the Arc Hydro tools for Raster Analysis to delineate watershed from DEM (Digital elevation models)

---To download DEM:---
The USGS Earth Explorer is a similar tool to the USGS Global Visualization Viewer (GloVis) in that users search catalogs of satellite and aerial imagery

https://earthexplorer.usgs.gov/

---To download Arc Hydro:---
Arc Hydro Tools are free with your ArcGIS software license. You may download version 2.0 of Arc Hydro Tools by connecting:

https://blogs.esri.com/esri/arcgis/20...

Designing Better Maps: A Guide for GIS Users
https://goo.gl/YyxQeo

Getting to Know ArcGIS
https://goo.gl/yLJvBG