Orthophotographic mosaics present an aerial view of Quebec territory at different times. They can be combined with topographic data to contribute to a better analysis of the territory. Each image has been analytically straightened to eliminate inaccuracies caused by the camera tilting at the time of shooting or by the displacement of the image due to relief. These collections are the result of governmental and regional initiatives. They were recently acquired through collaboration with some of the ministries and agencies and with municipal authorities. For information on product ownership please consult the metadata in the “Data” section: download and metadata index or the** [download map] (https://imagerie-telechargement.portailcartographique.gouv.qc.ca/) **. They are free to download, as they were acquired under an open data license (** [Creative Commons 4.0] (https://www.donneesquebec.ca/licence/) **). Two formats are available: JPEG 2000 associated with a division by regional county municipality (MRC) and GeoTIFF associated with a division by tile. The resolution varies from 15 to 20 cm and the image type is in natural color. For more information on tariffed aerial imagery, please consult the** [aerial imagery] (https://mern.gouv.qc.ca/repertoire-geographique/imagerie-aerienne/) ** section in the “Maps and Geographic Information” section of the Ministry of Energy and Natural Resources website.**This third party metadata element was translated using an automated translation tool (Amazon Translate).**