Acquiring Base Maps & Air Photos
Base Maps: All TEM and PEM mapping must be registered to a common TRIM (Terrain Resource Information Management) base. The use of a common base map for all mapping projects assists with the re-usability of the data sets. TRIM l or TRIM ll are acceptable and all original TRIM feature codes must be retained. See the TEM and PEM Standards for further information.
Air Photos: Information regarding air photo availability may be obtained from the Base Mapping and Geomatic Services Branch website and/or through Base Map Online Store.