Oregon Historical County Records Guide
Union County Records Inventory
Series provides visual documentation of changes made to county lands through development and by natural and man-made disasters. The photographs are taken at intervals along a series of flight paths to attain coverage of all or part of a county. They generally include flight path or township, range, and section numbers; show natural and man-made features; and are produced in black and white or color prints to varying scales. An index by quadrant may also be included.
Records at the Chaplin Building, Assessor/Surveyor Map Room:
[Aerial Photographs], 1956-1957, (ca.20 photographs);
[Aerial Photographs-with index], 1960, (ca.1300 photographs); 1985-1987 (ca.200 photographs).
Records at the Union County Public Works Department Office:
Aerial Photos, 1971 (ca.250 photographs);
Misc. Maps [Orthophoto Maps], 1989 (62 maps).