The detailed hydrographic network shows all the flow channels visible on the territory of 12 MRCs in Montérégie. This photo-interpretation project was carried out on a scale varying from 1:500 to 1:2000, using orthophotos (spring 2020 at 20 cm resolution for the territory excluding CMM and spring 2018 at 10 cm resolution for the territory in CMM) and shaded relief derived from LiDAR data (2008 to 2020). The project was carried out as part of the Regional Program for the Acquisition of Data on Wetlands and Water Environments (PRADMHH) and was funded by the Regions and Rurality Fund (FRR) of the Montérégie regional department of the MAMH.**This third party metadata element was translated using an automated translation tool (Amazon Translate).**

The characterization of shoreline strips was carried out on 400 km of agricultural watercourses for the territory of 5 MRCs in Montérégie (Beauharnois-Salaberry, Haut-Richelieu, Jardins-de-Napierville, Jardins-de-Napierville, Marguerite-d'Youville, Vallée-du-Richelieu). The results obtained by photo-interpretation, based on the width of the sections of shoreline strips calculated from the high-water line and the embankment, were aggregated to produce global results by municipality. The project was carried out as part of the Regional Program for the Acquisition of Data on Wetlands and Water Environments (PRADMHH) and was funded by the Regions and Rurality Fund (FRR) of the Montérégie regional department of the MAMH. Criteria used to characterize the conformity of shoreline strips. Shoreline compliance (Criteria used according to the width of the shoreline) Non-compliant (The non-compliant shoreline has a total width of less than 3 meters) Nearly compliant (The nearly-compliant shoreline has a total width of 3 meters or more, but less than 1 meter wide on the embankment) Compliant (The compliant shoreline has a total width of three meters or more and a width of a minimum of one meter on the embankment) Exceptional (The exceptional shoreline has a total width of 5 meters or more and a width of 3 meters or more from the embankment) **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 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 all municipalities and MRCs in the administrative region of Montérégie, excluding the Montreal Metropolitan Community (CMM) with the exception of the MRCs of Vaudreuil-Soulanges, Beauharnois-Salaberry, and Rouville whose territory is included in the coverage. * Format: GeoTIFF associated with a 5 km x 5 km tile cut. * 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).**