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I am trying to get this raster file to convert from WGS72 to NAD83, but ArcMap10 doesn't appear to have the correct transformation listed. Where can I find this transformation, and/or how do I import ones that are not already listed as available?

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ArcGIS doesn't have any direct transformations for WGS72 to NAD83, so you would have to use two transformations. For WGS72 to WGS84, try WGS_1972_To_WGS_1984_2. For WGS84 to NAD83, try NAD_1983_To_WGS_1984_5 if the data in the US.

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Fantastic. This worked great! –  Jeremy Roberts Jan 24 '11 at 5:35

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