DOQQ

Digital Orthophoto Quarter Quadrangles (DOQQs) are high-resolution aerial images that cover one-quarter of a standard USGS quadrangle map. These images are geometrically corrected to remove distortions caused by camera angle, terrain, and perspective, providing accurate spatial representation. DOQQ datasets capture detailed information about both natural and human-made features, including roads, buildings, rivers, vegetation, farmland, and water bodies. Their high positional accuracy makes them valuable for Geographic Information Systems (GIS), mapping, urban planning, environmental monitoring, land-use analysis, property assessment, and infrastructure development. Government agencies, researchers, planners, and private organizations use DOQQ data for reliable spatial analysis, resource management, disaster planning, and informed decision-making. By combining the visual detail of aerial photography with the accuracy of maps, DOQQs provide an essential source of geospatial information.