I want to derive ridgelines from DEM using ArcGIS 10.4. I have tried to use the watershed analysis procedure but the result I have obtained looks weird.

How can I get the ridgelines shapefile?

  • 3
    Perhaps update your question with the picture of weird ridge line and procedure description
    – FelixIP
    Apr 15, 2017 at 6:07

1 Answer 1


I think How To: Identify ridgelines from a DEM will be useful for you:

The instructions provided describe how to identify ridgelines from a DEM. Spatial Analyst and the Hydrology Toolset can be used to identify and extract ridgeline features from an elevation raster (DEM) in the same manner as a stream network can be created by reversing the DEM cell values.

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