Directorios

Enlace: http://www.ourfutureourpast.ca/airphotos/

Descripción: The Alberta Heritage Digitization Project. University of Calgary.
Canada's Digital Collections. Government of Canada.
«The Alberta Airphoto collection consists of 30,000 copyright cleared airphotos of primarily urban areas in Alberta, flown at different times since 1924. These airphotos provide information on changes in the geography and landscape of the areas included and can be traced on flight line maps for comparison purposes over time.»