Oregon Historical County Records Guide
Washington County Records Inventory
Aerial Photographs
1935-1992
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.
The searchable InterMap GIS database includes 2006 aerial photographs. The searchable iSpirits research tool includes map layers that include aerial photography.
Records at the Public Services Building, Suite 350, Land Development Division Office:
[Aerial Photographs], ca.1935 (ca.100 photographs);
[Aerial Photograph Negative Film Roll, 1992 (.50 cu.ft.);
[Aerial Photograph Negatives], 1974 (ca.90 photographs);
[Aerial Photographs-with index], 1960 (ca.100 photographs); 1969 (ca.100 photographs); 1974 (ca.200 photographs); 1979-1980 (ca.200 photographs); 1989 (ca.25 photographs); 1990 (ca.400 photographs).
Records at the Public Services Building, Suite 350, Land Development Division Office, Counter Hanging Map Area:
Aerial Photos, 1988 (1 volume).
Records at the Public Services Building, Suite 350, Long Range Planning Division Office, Map Cabinet:
Assorted Air Photos, 1955, 1956, 1971, 1979 (ca.75 photographs);
Metro Air Photos, 1988, 1991, 1992 (ca.100 photographs).
Records at the Public Services Building, Suite 200, Survey Division Vault:
Base Map Aerials [Photographs], ca.1982 (ca.20 photographs);
Spencer B. Gross City-County Joint Planning [Aerial Photographs-with index], ca.1965 (ca.300 photographs).
Records at the Washington County Historical Museum:
[Aerial Photographs], 1955 (ca.45 photographs); n.d. (ca.400 photographs).