HydroSHEDS Worldwide River data
HydroSHEDS provides hydrographic information in a consistent and comprehensive format for regional and global-scale applications. HydroSHEDS offers a suite of geo-referenced data sets (vector and raster), including stream networks, watershed boundaries, drainage directions, and ancillary data layers such as flow accumulations, distances, and river topology information. 1. User the interactive map to zoom to your area of interest. 2. Choose the Downloads tool to draw a red box around your area of interest. (draw a tight box, the resulting files are very large) 3. In the Available Datasets screen, click on the left for your filetype of interest (river shapefiles come in 15 second and 30 second varieties) 4. Click the tiny disk to download.