You can search the Earth Observation Data Management System (EODMS) from Natural Resources Canada to find federal air photos. To search for air photos, under "3. Select Data" check the box next to National Air Photo Library. Once you have selected our area of interest and submitted your search, a map will appear displaying the extent of any air photos from the National Air Photo Library. Clicking on an area of the map will highlight the photos covering that area in the left-hand side list, allowing you to determine which photos are of interest to you. Once you have noted the roll and frame numbers you can check their availability in UNBC's Air Photo Collection.