The HydroSHEDS database offers a suite of global digital data layers in support of hydro-ecological research and applications worldwide. Its various hydrographic data products include catchment boundaries, river networks, and lakes at multiple resolutions and scales.
HydroSHEDS data are freely available in standard GIS formats and form the geospatial framework for a broad range of assessments including hydrological, environmental, conservation, socioeconomic, and human health applications.