미국
Jefferson County KY Aerial Photo Index, Year: 1991 Scale:660
Polygon layer of 1991 aerial photo models; derived from imagery project program which determined model boundaries based on 9” x 9” contact print photo centers of adjacent aerial photo frames. Spring 1991 aerial photography was acquired by Atlantic Aerial (Magnolia River) of Huntsville, Alabama under contract to LOJIC. Photo scale 1 inch = 660 feet.