Steps to Finding Maps Identify the numeric code for your geographic area. This can be done by consulting the maps on the southeast wall in the MAP Library. OR Codes for states in the United States Codes for nations of the world Identify the code for the subject content of the map. Maps may be checked out for one week. The MAP Library's collection of aerial photographs contains more than half a million items.
Aerial photographs provide coverage for Oregon only.
These photographs are arranged archivally and assistance is required for retrieval. To locate an aerial photograph, you will have to know the exact site you need and the dates for which you would like to find photographs. Aerial photographs are available from approximately 1936 to the present. Access to the aerial photographs is by geographic area only. There is no topic or subject access to this collection.