Drainage Basins

This map shows the five ocean drainage areas in Canada, the major river basins, the internal drainage areas and the diverted drainage areas. A drainage basin, sometimes called a watershed, is an area where all surface water shares the same drainage outlet. Surface water consists of the tiny trickles of water flowing on the surface of the earth that develop into larger streams and eventually combine to form a river. The boundary of a watershed is called a drainage divide.

Données et ressources

Info additionnelle

Champ	Valeur
Dernière modification	avril 17, 2026, 21:41 (TU)
Créé le	avril 17, 2026, 21:41 (TU)
contact_email	geoinfo@nrcan.gc.ca
contact_person	{}
criticality_level	[]
data_dictionary	["boundaries", "society"]
geographic_scope	[]
open_canada_collection	geogratis
open_canada_date_published	2007-01-01 00:00:00
open_canada_keywords	{"fr": ["bassin hydrologique", "carte géographique"], "en": ["geographical maps", "watersheds"]}
open_canada_subject	["government_and_politics", "society_and_culture"]
sensitivity_level	unrestricted
title_fr	Bassins hydrographiques
update_frequency	as_needed