Calgary Environmental Site Assessment

Digital

• Calgary digital orthophotos available 1999 - 2017 at Spatial and Numeric Data Services
• search for air photo sets from SANDS collection, some flight lines with links to historic digitized photos
• Alberta Airphoto Collection digitized historic photos from SANDS collection, 1922-1956

Hard copy

• SANDS collection Air Photo Search Guide
• Calgary air photos from 1922-2011 available at SANDS
• many flight line maps available from SANDS file server, by NTS 1:250K grid