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The theme on physicochemical monitoring of rivers and rivers presents data from all the stations of the water quality monitoring networks in rivers in Quebec and the St. Lawrence River sampled between 2000 and 2020. The purpose of networks for monitoring general water quality is to characterize,...

This theme presents the index of water health along the banks of the St. Lawrence River. It makes it possible to determine if the sites present risks to human health and if they are suitable for swimming. These data are the result of an exploratory monitoring program that aims to raise awareness...

This thematic layer represents the characterization of the hardness of surface water in Quebec for the period 2005 to 2019. The hardness is presented according to the medians calculated from the concentrations of calcium and magnesium ions in seven classes. Water hardness influences the toxicity...

#Données linked to the monitoring of 2020 floods in Quebec ## #Liste of available data: * Location of flood events since April 2, 2020 (WMS web service); * Municipalities affected by flood events since April 2, 2020, updated in real time according to the presence of events (WMS web service); *...

The 2023 mapping of potential wetlands in Quebec (CMHPQ) 2023, released by the Directorate of Ecological Knowledge (DCE), provides up-to-date information on the potential presence of wetlands for the entire province of Quebec. In particular, version 2023 contains the classification of potentially...

This theme presents the trophic status of lakes monitored as part of the Voluntary Lake Monitoring Network (RSVL) between 2004 and 2020. The trophic state is the result of the compilation of data acquired as part of this network. Trophic levels are used to classify lakes according to their degree...

Note that topographic maps at a scale of 1/100,000 are no longer updated. For the latest update date, see the [metadata] (ftp://transfert.mern.gouv.qc.ca/public/diffusion/RGQ/Documentation/BDAT/Metadonnees_BDAT100k_NordSud.xls). The reference cartographic data is now constituted according to a...

This layer shows the location of the sampled stations classified according to the Eastern Canada Diatom Index (IDEC). It contains data obtained since 1935 that was converted to version 3 of the index (Lavoie et al. 2014). Benthic diatoms are microscopic unicellular algae that line the bottom of...

This map illustrates the terrestrial and marine reliefs of Quebec and surrounding territories, at a scale of 1/2,000,000. Color ranges representing altitude classes and blending offer a summary of the relief and the major physiographic groups of Quebec. This map of the relief of Quebec is...

The Route Blanche is a snowmobile trail located on the Lower North Shore, constituting the only winter land link between Kegaska and Blanc-Sablon, thus bridging the road link between municipalities. The White Road is inventoried in the BGR system with the sub-route code “M”, as in this example:...