Update raster pixels on a DEM

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I have a DEM in the form of a raster that I would like to update in certain locations. Ideally, I'd like to be able to create a separate polygon or point shapefile with the values, in the correct spatial location, to update the original DEM with. Is there a way to do this?

I have a spatial analyst extension and ET Geowizards. I do not have 3D Analyst.



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