Data includes: * The Lake Superior watershed * The Lake Huron watershed * The Lake Erie watershed * The Lake Ontario watershed * The St. Lawrence River watershed

Linear hydrographic network of the City of Rouyn-Noranda. The ditches ofdrainage is not included.**This third party metadata element was translated using an automated translation tool (Amazon Translate).**

Major Drainage Areas (MDA), as portrayed in this map, are part of the Standard Drainage Area Classification (SDAC) which was developed by Natural Resources Canada, in partnership with Statistics Canada, and Environment and Climate Change Canada.A drainage area, as opposed to a drainage basin or watershed, is a unit of statistical aggregation used for reporting purposes based upon drainage patterns and the underlying basins, delimited by a drainage divide.A drainage basin, sometimes called a watershed, is an area where all surface water shares the same drainage outlet. Surface water consists of water flowing on the surface of the earth that develops into larger streams and eventually combines to form a river.The 11 MDAs presented in this map comprise the uppermost level in the drainage area classification system which then divides into 164 sub-drainage areas, and then is further divided into 974 sub-sub-drainage areas. Relief was derived from the merging of two raster data sets, both resampled to 804 metre resolution:- High Resolution Digital Elevation Model (HRDEM) – CanElevation Series- Canadian Digital Elevation Model, 1945-2011Further information on all these maps can be found on the Atlas of Canada web site atlas.gc.ca.

Drainage basins of Manitoba.Hydrologic drainage basins found within Manitoba. The Assiniboine River basin is divided to indicate the Shellmouth Reservoir subbasin, to better illustrate local impacts and conditions. Basin names are in English and French. 

Landscape Management Units for the 2019 Peel Watershed Regional Land Use Plan. For more information, please refer to [https://yukon.ca/peel-watershed-regional-land-use-plan](https://yukon.ca/peel-watershed-regional-land-use-plan)Distributed from [GeoYukon](https://yukon.ca/geoyukon) by the [Government of Yukon](https://yukon.ca/maps) . Discover more digital map data and interactive maps from Yukon's digital map data collection.For more information: [geomatics.help@yukon.ca](mailto:geomatics.help@yukon.ca)

Watershed boundary delineated for Canada-BC hydrometric stations. Currently, watersheds were delineated using 1:50,000 scale boundaries in 1996, and many watersheds encompass entire drainages, instead of just the upstream watersheds. Note - Not yet available, but we are in the process of generating BC hydrometric station upstream watersheds using updated base data, using the following method: Within BC, watershed boundaries are based on the 1:20,000-scale Freshwater Atlas fundamental watersheds, and trimmed using the BC TRIM DEM used to approximate the height-of-land at the station locations. Outside of BC, but within Canada, watershed boundaries were approximated using Canada CDED DEM data for delineation (no "stream burning" was used) and some manual editing of boundaries was done to approximately match hydrology data after the fact. Within U.S.A., the USGS Watershed Boundary Dataset was used (at the best scale available for each drainage) to delineate the watershed boundary, with the watershed trimmed using the USGS National Elevation Dataset to approximate the height-of-land when necessary.

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).**

The "Total Effective Drainage Areas of the AAFC Watersheds Project – 2013” dataset is a geospatial data layer containing polygon features representing the areas within the “total gross drainage areas” of each hydrometric gauging station of the Agriculture and Agri-Food Canada (AAFC) Watersheds Project that would contribute to average runoff. A ‘total gross drainage area’ is the maximum area that could contribute runoff for a single gauging station – the ‘total effective drainage areas’ are those parts of that ‘total gross drainage area’ that would contribute surface runoff to an average runoff. For each “total gross drainage area” there can be only one “total effective drainage areas”.These polygons may overlap with those from other gauging stations’ “total gross drainage area”, as upstream land surfaces form part of multiple downstream gauging stations’ “total gross drainage areas”.

Surface hydrographic network of the City of Rouyn-Noranda**This third party metadata element was translated using an automated translation tool (Amazon Translate).**

The purpose of this dataset is to provide the public with the areal extents of the 14 watershed districts in Manitoba.The Watershed Districts Act , proclaimed on January 1, 2020, transitioned 18 conservation districts to 14 watershed districts, with boundaries based on watersheds. Along with this change, the Manitoba Conservation Districts Program was renamed the Manitoba Watershed Districts Program, and the program was modernized to enhance watershed-based water management in Manitoba. The goal of the program is to create healthy and sustainable watersheds through land and water stewardship programs and partnerships. With funding from the Manitoba government and municipal partners, locally-appointed watershed district boards make planning and management decisions to improve watershed health across most of rural Manitoba. Fields included ( Alias (Field Name): Field description.)FID (FID): Sequential unique whole numbers that are automatically generatedWatershed District Name (WSD_Name): Name of the Watershed DistrictArea_SqKm (Area_SqKm): Area in square kilometres of the watershed district