Photogrammetry is the science of obtaining reliable spatial measurements from three-dimensional aerial photography. Our photogrammetry division utilizes the highest quality digital and analytical stereoplotters to produce planimetric and topographic maps for a variety of applications.

Planimetric mapping is the most commonly requested service that we provide in our photogrammetry department. It involves the mapping of surface feature locations such as roads, buildings, drainage canals, and power poles with accuracies meeting or exceeding National Map Accuracy Standards. Each map is produced in a digital format with each group of features separated by layers. Products include precisely scaled paper plots and digital outputs in a variety of formats.

Topographic mapping involves the mapping of land elevations using contour lines and spot elevations. It is typically used in conjunction with planimetric mapping, giving the viewer an accurate display of a land feature's position with respect to ground elevation.

Terrain modeling uses the elevation data produced with the stereoplotter to create Triangular Irregular Networks (TIN), which are wire frame representations of the earth's surface. They are commonly used to determine heights and volumes of objects.