Drainage network extracted from the SRTM altimetry data in horizontal resolution of 90 meters using the following functions of the TerraHidro system: local flow extraction,...

Drainage network extracted from the SRTM altimetry data in horizontal resolution of 30 meters using the following functions of the TerraHidro system: local flow extraction,...

Set organized common of spatial data required by most organizations in the city of Bogotá, Capital District. Represents the basic elements of the District territory in its urban...

Contains the network of rivers and streams of Greece as provided by the Agency e-per.gr

The NTDB provides a base of properly structured vector data (segmentation, mathematical closure, connection and sharing between entities) designed and suited for geographic...

CanVec aims to have standardized and actualized representation of topographic phenomenon for the entire Canadian landmass.

The Atlas of Canada 1,000,000 National Frameworks Data are a set of integrated base map layers, which form the Atlas of Canada 1,000,000 National Frameworks Data collection....