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Approach_Surface
The dataset provides information on airport approach surfaces. The approach surface is longitudinally centered on the extended runway centerline and extends outward and upward... -
Primary_Surface
The dataset provides information on the primary surfaces of Iowa airports. The primary surface extends 200 feet beyond each end of the runway, but when the runway has no... -
Approach_Surface__Precision_
The dataset provides information on airport approach surfaces. The approach surface is longitudinally centered on the extended runway centerline and extends outward and upward...