NZ River Polygons (Topo, 1:50k)

Water features across the area: rivers, streams, canals, lakes, ponds, and water bodies tagged with `waterway`, `water`, or `natural=water`. Useful for flood-risk modelling, watershed analysis, and environmental basemap context. Coverage reflects where volunteer mappers have been active. Urban areas are usually well represented, remote areas may be sparse. Cross-check critical decisions with local field knowledge. - Source: OpenStreetMap, a free, collaborative world map - Tags: waterway, water, natural - Part of the country exports on HDX by HOT

Rivers, streams, canals and drains from OpenStreetMap (ways tagged waterway), with names where mapped.

Line features representing rivers and streams in Nigeria, each recording the feature type and whether the watercourse is perennial or permanent. Published by Orion Terrametrics.

Rivers, streams and drainage network of Morocco showing the extent and hierarchy of surface water features. Use this layer for watershed analysis, flood modelling, irrigation planning, water resource mapping, and environmental impact assessment.

Water features across the area: rivers, streams, canals, lakes, ponds, and water bodies tagged with `waterway`, `water`, or `natural=water`. Useful for flood-risk modelling, watershed analysis, and environmental basemap context. Coverage reflects where volunteer mappers have been active. Urban areas are usually well represented, remote areas may be sparse. Cross-check critical decisions with local field knowledge. - Source: OpenStreetMap, a free, collaborative world map - Tags: waterway, water, natural - Part of the country exports on HDX by HOT

Global river network and lake centerlines at 1:10 million scale from Natural Earth, derived primarily from World Data Bank 2. Includes major rivers worldwide with scale rank attributes for cartographic filtering. Use this layer for river network mapping, hydrological analysis, catchment studies, and cartographic base mapping at global and continental scales. No additional information provided.