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Aerial survey - GPA - Flight 20 and 21 (partial) West Portland Park |
04/17/1981 |
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Aerial survey - Wheeler extension - Flights 1 and 2 - SW, SE and NE Portland |
04/18/1991 |
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Aerial survey - Wheeler 2 - Flights 1 and 2 - NE and N Portland |
04/12/1991 |
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Aerial survey - Westside Mapping - Flight 8 - SW to N Portland |
02/26/1992 |
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Aerial survey - Westside Mapping - Flight 7 - SW and NW Portland |
02/26/1992 |
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Aerial survey - Westside Mapping - Flight 6 - SW and NW Portland |
02/26/1992 |
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Aerial survey - Westside Mapping - Flight 5 - NW and N Portland |
02/26/1992 |
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Aerial survey - Westside Mapping - Flight 4 - NW and N Portland |
02/26/1992 |
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Aerial survey - Westside Mapping - Flight 3 - Forest Heights and North |
02/26/1992 |
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Aerial survey - Westside Mapping - Flight 2 - NW and N Portland |
02/27/1992 |
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Aerial survey - Westside Mapping - Flight 1 - Forest Park and Sauvie's Island |
02/27/1992 |
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Aerial survey - Spot 1, Flight 1 and Flight 2 - Parkrose |
02/03/1985 |
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Aerial survey - SBG Portland 90 - Flight 4 - NE Tillamook |
04/10/1990 |
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Aerial survey - SBG Portland 90 - Flight 3 - NE Siskiyou St |
04/10/1990 |
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Aerial survey - SBG Portland 90 - Flight 2 - NE Shaver |
04/10/1990 |
