Hydrographic Nodes — Meeting 2012 — CD Carthage

A hydrographic node is a change in water flow. It is always located at the end of an elementary hydrographic section. The hydrographic nodes class managed by the IGN includes: — confluences, diffluences, sources, mouth and losses of rivers; — dams; — dams along water; — locks (for passage or radoub); — sources and cascades of tourism interest. A hydrographic node is located by a geometric summit. Some nodes correspond to an outlet of a hydrographic area.