 | Aerial Photos 1936 - West Portland | Historical imagery covering the area of Portland West of the Willamette River. | Imagery | |
 | Aerial Photos 1948 - Willamette Watershed | Historical aerial photos of the urban Willamette Watershed | Imagery | |
 | Aerial Photos 1960s - Willamette Watershed | Historical aerial photos of the urban Willamette Watershed | Imagery | |
 | Aerial Photos 1975 - Willamette Watershed | Historical aerial photos of the urban Willamette Watershed | Imagery | |
 | Aerial Photos 1990 - Willamette Watershed | Historical aerial photos of the urban Willamette Watershed | Imagery | |