The Geobase of the Quebec Hydrographic Network (GRHQ) is the common frame of reference for hydrography in Quebec. It is a detailed hydrographic network that can support numerous applications in land use planning, the environment and civil security. The GRHQ is produced in partnership with the Ministry of the Environment, the Fight against Climate Change, Climate Change, Wildlife and Parks (MELCCFP) and the Ministry of Natural Resources and Forests (MRNF) based on the following data: * The hydrographic classes of the Quebec Topographic Database (BDTQ) at the scale of 1/20,000 of the MERN for the south of the province; * The hydrographic classes of the Quebec Topographic Database (BDTQ) at the scale of 1/20,000 of the MERN for the south of the province; * The hydrographic classes of the Quebec Topographic Database (BDTQ) at the scale of 1/20,000 of the MERN for the south of the province; * The hydrographic classes of CanVec at the scale of 1:50,000 from Natural Resources Canada for the North; * The continuity segments of the MELCCFP network; * The units of the hydrographic division of the MELCCFP; * The official toponyms of the TOPOS database of the Toponymy Commission. The main components are: _Geometric network_ * Points * Point components of the geometric network (hydrographic junctions). * Lines * Linear geometric network representing the continuity of flow through all types of hydrographic entities (linear and surface). _Thematic Information_ * Points * Class of context entities represented in point form that enrich the thematic content of the various hydrographic components. * Lines * Class of context entities represented in linear form that enrich the thematic content of the various hydrographic components. * Class of linear entities representing the shores of hydrographic surfaces. * Surfaces * Class of context entities represented in surface form that enrich the thematic content of the various components. * Class of linear entities representing the shores of hydrographic surfaces. * Surfaces * Class of context entities represented in surface form that enrich the thematic content of the various components. * Class of linear entities representing the shores of hydrographic surfaces. * Surfaces * Class of context entities represented in surface form that enrich the thematic content of the various components hydrographic. * Class of surface entities representing hydrographic surfaces. _Management Units_ * Surfaces * Class of surface entities representing hydrographic division units (UDHs).**This third party metadata element was translated using an automated translation tool (Amazon Translate).**