The watershed is a geographic unit, which designates the total area draining into the same principal watercourse. The watershed includes both surface and subsurface water flow.




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For more information, see the link on watershed produced by ''Dans ma Cour'':



(Picture : http://www.debits-dordogne.fr/index.php?id=2 )

The Gatineau River drains an area of 23 724 km2 and is, in fact, the principal tributary of the Ottawa River. The Gatineau River has its source near Parent, in the Haute-Mauricie region, and drains a part of the municipality of Senneterre in the Abitibi-Temiscamingue region, as well as the La Vérendrye Reserve, before continuing through the hills of the MRC Vallée-de-la-Gatineau. The watershed touches five administrative regions, the principal ones being la Mauricie, les Laurentides and the Outaouais regions.

The portion of the watershed encompassing the Gatineau-Ottawa urban centre constitutes an important recreational and vacationing zone. In 1993, for example, there were 30 000 non-residents vacationers (cottagers) in this area, compared to 35 000 permanent residents. As a result, certain lakes within the watershed undergo substantial population density pressures. In spite of this, the water quality of the Gatineau River is, globally speaking, very good and the ABV des 7 intends to preserve this jewel.



The integrated management of water is an approach that calls upon the participation of all the stakeholders of the water sector, whether they are local, regional, public or private. Management on a watershed basis introduces the concept of natural geographic territories rather than administrative divisions. In addition, integrated management must consider all the uses of the water resource within the designated area, in this case the watershed. Thus, various water uses are examined in relationship to their impact on the milieu and on each other.

The advantages of integrated management by watershed:

  • Permits the collaboration and exchange of ideas between all stakeholders and users of the water, in order to assure coordination of activities, both upstream and downstream in the watercourse;
  • Permits a global view of the territory, so that action taken locally will not cause negative impacts elsewhere in the watershed;
  • Takes into account the needs of all users and calls upon all stakeholders to take responsibility;
  • Promotes a sentiment of belonging to the community and sensitizes residents to the state of the quality of water;
  • Permits a global approach that considers the ecosystem as a whole, with a view of sustainable development.



Under the Plan of action on blue-green algea, southern Quebec was reorganized into 40 areas of integrated water management. Thus, the boundaries of our territory have been extended. Click on the map to vizualize it.