Digital Aerial Survey (DAS) maps illustrate surface features present in an aerial photograph (e.g. buildings, public trees, curbs and gutters, manholes, catch basins, poles, elevation contour lines ...

1930 Fairchild Survey digital collection represent a complete set of aerial images commissioned by the City of Dallas. The images were taken by Sherman Mills Fairchild in October 1930 flying out of ...

The county continues to own the contract with EagleView Technologies for pictometry, an aerial survey technique for creating maps via imagery from above. The new multi-year contract, lasting until ...