**Permafrost** is any soil or rock whose temperature has remained below 0°C for years. In the extreme north of Quebec, it is omnipresent and very thick. At its boreal margin, further south, it appears in the landscape in the form of isolated thin plates, whose thickness is generally less than 10 m. Permafrost contains ice in various forms, whose origin is closely linked to the sedimentary characteristics and drainage conditions of the land.The mapping of permafrost conditions for Nunavik (territory located north of the 55th parallel), carried out by the Center for Nordic Studies at Laval University, was done by applying a simple model called TTOP (Temperature at the Top Of Permafrost) for the period from 2000 to 2016. The results of the model are presented in the form of a raster file that illustrates the distribution of continuous, discontinuous, and sporadic permafrost, as well as isolated islands.Under the effect of global warming or poorly adapted human activities, permafrost heats up or even thaws, which leads to settlements and ground movements affecting ecosystems as well as infrastructures. Thus, the susceptibility of the territory to thermokarstic subsidence was evaluated for the same territory taking into account the ice content and the temperature at the top of the permafrost. A matrix file (raster) of the susceptibility of the territory to ground subsidence associated with permafrost thaw presents three susceptibility classes (high, moderate, and low) as well as areas generally without permafrost.**This third party metadata element was translated using an automated translation tool (Amazon Translate).**

These sheets present the annual results of periphyton monitoring in Quebec lakes. Periphyton is a microecosystem composed of algae, bacteria, and other forms of life that thrive on various submerged surfaces in shallow areas of aquatic environments. Since 2012, the team from the Ministry of the Environment, the Fight against Climate Change, Wildlife and Parks (MELCCFP) responsible for the Voluntary Lake Surveillance Network (RSVL), in collaboration with various partners, has been offering local residents' associations and organizations involved in the protection of lakes the opportunity to monitor periphyton. This monitoring makes it possible to detect signs of eutrophication in the coastal zone, that is to say in the shallow areas located near the shore.The sheets are available from the [Directory for downloading the annual periphyton monitoring sheets] (https://stqc380donopppdtce01.blob.core.windows.net/donnees-ouvertes/RSVL/Periphyton/Repertoire_fiches_periphyton.html). The lakes are identified by their name and number from the Quebec Lakes and Rivers Database (LCE). If you don't know any of this information, check the download index.**This third party metadata element was translated using an automated translation tool (Amazon Translate).**

Polyline layer of snowmobile trails in the territory of the city of Shawinigan.! [Shawinigan logo] (https://jmap.shawinigan.ca/doc/photos/LogoShawinigan.jpg)**Collection method** Scanning from orthophotography**Attributes*** `objective` (`OID`): * `st_length (shape) `(`Double`): Length* `state` (`String`): StateFor more information, consult the metadata on the Isogeo catalog (OpenCatalog link).**This third party metadata element was translated using an automated translation tool (Amazon Translate).**

These orthomosaics are produced from aerial photographs acquired in the spring of 2025. These mosaics are the result of regional partnerships. They are free to download, as they were acquired under an open data license (Creative Commons 4.0). The territory covers the city of Saguenay and part of the MRCs of Fjord-du-Saguenay, Lac-Saint-Jean-Est, Le Domaine-du-Roy and Maria-Chapdelaine.**This third party metadata element was translated using an automated translation tool (Amazon Translate).**

Geometric and conventional representation of the hydrographic network. The 3D hydrographic layer is represented by several natural or physical elements associated with the presence of water. These elements form part of the layers in the digital cartographic compilation.**This third party metadata element was translated using an automated translation tool (Amazon Translate).**

* These mosaics are the result of an assembly of orthophotographs produced in spring 2022 and 2023. Each image has been positioned geographically taking into account the effect of the relief.* These mosaics are the result of regional partnerships. They are free to download, as they were acquired under an open data license (Creative Commons 4.0).* The territory covers the MRCs of Antoine-Labelle, Argenteuil, Argenteuil, the Laurentians, the Pays d'en Haut and the Rivière du Nord.* Two formats are available: JPEG 2000 associated with a division by regional county municipality (MRC) and GeoTIFF associated with a division per tile of 2 km x 2 km.* The spatial resolution is 20 cm.* The image type is natural color.**This third party metadata element was translated using an automated translation tool (Amazon Translate).**