Surface Deposit

The link: Access the data directory is available in the sectionDataset Description Sheets; Additional Information.

Surface deposit is the layer of loose material that covers rock. The deposit may have been established during the retreat of the glacier at the end of the last glaciation or by other processes associated with erosion and sedimentation. The nature of the loose deposit is evaluated based on the shape of the land, its position on the slope, the texture of the soil, or other indicators. Surface deposit maps make it possible to distinguish the main categories of surface deposits and to know their nature, thickness and distribution on Quebec territory. Based on the interpretation of aerial photographs at a scale of 1/40,000 and control points in the field as part of the ecoforest inventory of southern Quebec, this mapping contributes in particular to the development of ecological forest products.

__ ⚠️ Notes: __

• This map covers almost the entire territory of Quebec south of the 52nd parallel. It is distributed by map sheet at a scale of 1/50,000. Surface deposits have a minimum area of 4 ha.
  This third party metadata element was translated using an automated translation tool (Amazon Translate).

Organization: Government and Municipalities of Québec | Gouvernement et municipalités du Québec

Last modified: 2026-05-13T17:33:00.154829