An orthophoto is an aerial photograph which has been geo-referenced and geometrically corrected so that the orthophoto has a uniform scale and can be situated accurately on a digital map. Available for immediate download with digital licensing. The orthophoto may be used for reference purposes, but may not be distributed or republished without permission.
The City of Calgary Orthophotos are tiled in Alberta Township Survey (ATS) sections. The first two digits of the product’s filename represents the township number. These are followed by two digits representing the range and then a single digit representing the meridian. The final two digits following an "s" indicates the section number. (TTRRMsSS.sid)
These orthophotos cover the entire City of Calgary with at least a 2 km buffer beyond the city's boundary. As a result some sections beyond the city limits may be incomplete.
If you do not already have a program that can open MrSID format files, see GeoViewer by LizardTech.
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