This document outlines the 7 main steps to delineate a watershed from a DEM using ArcGIS:
1) Create a DEM from SRTM data and reproject it to UTM.
2) Remove sinks and errors from the DEM using the Fill tool.
3) Generate a flow direction raster using the Flow Direction tool.
4) Generate a flow accumulation raster using the Flow Accumulation tool.
5) Map stream channels by selecting cells with over 400 upstream cells.
6) Assign each stream segment a unique number using the Stream Link tool.
7) Generate the watershed boundaries using the Watershed tool.
![[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]](https://image.slidesharecdn.com/creating-watershed-using-srtm-dem-15375/85/creating-watershed-using-srtm-dem-1-320.jpg)
![[object Object],[object Object]](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)