Digital Orthophoto Quadrangle (DOQ)
Digital Orthophoto Quadrangle (DOQ) : Photographic maps distributed by the U.S. Geological Survey. A DOQ is an aerial photograph that is adjusted to remove distortions caused by variations in terrain and the camera lens to produce a photograph that displays features in their planimetrically correct location. This term is sometimes used loosely to mean any photographic map produced by this process
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