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Interchange 21, Iowa Interchange 21 is a crossing located in Pottawattamie County, IA at N41.49888° W95.74612° (NAD83) and at an elevation of 1167 ft MSL. It can be seen on the USGS 1:24K topographic map Underwood, IA.
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Note: Coordinates in the location and feature list above are referenced to NAD83 datum. |