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  • Digital terrain models provide a representation of the relief south of the 52nd parallel, in the form of an elevation matrix. This matrix allows you to visualize the territory in perspective and perform three-dimensional spatial analysis using the appropriate software. A module specialized in processing three-dimensional data, such as 3D Analyst or Spatial Analyst, is required to visualize the three-dimensional elevation numerical model. This numerical elevation model (10 meter pixel matrix) is obtained by processing altimetric data (level curves and elevation points) from [1/20,000 scale topographic databases] (https://www.donneesquebec.ca/recherche/fr/dataset/cartes-topographiques-a-l-echelle-de-1-20-000). **This third party metadata element was translated using an automated translation tool (Amazon Translate).**