Below is a list of relevant web links to river related tools and datasets.

River Habitat Survey

The River Habitat Survey is a methodology for recording habitat features for wildlife that was designed by the Environment Agency, England and Wales and has since been applied in many other countries.

CaBa Logo

The Catchment Based Approach (CaBA) is a UK community-led approach that engages people and groups from across society to help improve the water environments. It's website has a comprehensive data portal providing access to various UK river related datasets.

OS Logo

The UK mapping agency provide a free to use but generalised river network of Great Britain called Open Rivers. A more comprehensive and detailed network is the OS WaterLayer. This product contains a nationally consistent view of Great Britain's watercourses.

Amber Logo

AMBER is a project seeking to apply adaptive management to the operation of barriers in European rivers to achieve a more effective and efficient restoration of stream connectivity. 

BioFresh Logo

A web site listing a selection of useful shapefiles in freshwater biodiversity research.


You can download global or regional river networks generated from elevation data obtained during a Space Shuttle flight for NASA's Shuttle Radar Topography Mission (SRTM). Developed by the World Wildlife Fund in partnership with USGS, CIAT, TNC and CESR. 

NHD Logo

The American national river network. You can download detailed river networks for all States of America.


The website where you can download the 1:500K river network of South Africa.

JRC Logo

The CCM2 database covers the entire European continent, including the Atlantic islands, Iceland and Turkey. It includes a hierarchical set of river segments and catchments based on the Strahler order, a lake layer and structured hydrological feature codes based on the Pfafstetter system.

Wheaton Logo

A site hosting links and research material in fluvial geomorphology. Many tools have been made available through the RiverScapes Consortium.

SH Logo

A website dedicated to GIS and Hydrology.


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Environmental Systems Research Institute, Inc.

Code Sharing (formerly ArcScript) website, a huge source of ESRI user community scripts. From here you can follow links to the newer code galleries for ArcGIS 10+