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I am working with ArcMap 10.3. I have imported DEM files. When I imported the files they had the extension of .DDF.

I would now like to be able to take a list of XY coordinates and, for lack of a better term, merge them with the DEM files so that I can get the elevation of any given point.

I imported XY Data and projected it with the NAD 1983 coordinate system. But, I can't figure out how to "combine" the 2 layers to get the elevation of my XY points. I can right click on the map and click "Identify..." and get the elevation, but that's about it.

Also, if there is a way to do this without the Spatial Analyst extension, that would be great. I am supposed to have it on my license, but for whatever reason I don't and need to know if there is a way to do this without it.

marked as duplicate by Dan C, Hornbydd, Andre Silva, Mapperz Apr 4 '16 at 21:13

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  • This is not a duplicate, although very similar. And the other solution does not work for me as I don't have access to the 3D Analyst extension either. – Rob Apr 4 '16 at 16:54
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    Possibly a stupid question, but if you have a license, have you enabled the extension? – mkennedy Apr 4 '16 at 16:58
  • Have a look at my solution by following link in @DanC comment – FelixIP Apr 4 '16 at 20:18
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If you do have the 3D Analyst extension, it should work this way:

  1. Use the tool 'Interpolate Shape'. This will add a Z coordinate information to your points.
  2. Use tool tool 'Add XY coordinates'; this will add the XY and also Z coordinates of each point into the attribute table of the shape.

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