Aerial Photography Operations in the Coast and Geodetic Survey

Through the exploitation of color, infrared, and panchromatic aerial films, the Coast and Geodetic Survey has developed aerial photography skills and procedures that have removed much of the hazardous and back-breaking work from charting shoreline and locating landmarks and aids to nautical navigation. It has extended these techniques to aeronautical and airport obstruction charting, and more recently has applied photogrammetric principles to mapping boundaries, making crustal movement surveys, measuring tidal currents, and for extending horizontal control.