An RDF spatial representation of all the administrative regions in the world

GADM is a spatial database of the location of the world's administrative areas (or adminstrative boundaries) for use in GIS and similar software. Administrative areas in this database are countries and lower level subdivisions such as provinces, departments, bibhag, bundeslander, daerah istimewa, fivondronana, krong, landsvæðun, opština, sous-préfectures, counties, and thana. GADM describes where these administrative areas are (the "spatial features"), and for each area it provides some attributes, foremost being the name and variant names.

This site contains an RDF spatial representation of the regions represented in the GADM project, providing links to existing spatial datasets, with the ultimate goal of enhancing the integration of spatial information in the Semantic Web. You can find RDF dumps of the available data in our download section.

Examples:

Services

We also provide a growing set of Linked Data Services (LIDS):

Acknowledgement

This site is developed as part of the Planet Data EU Network of Excellence (#257641).

News

2013-11-20
Added NeoGeo Spatial Ontology search.
2013-10-20
Switched to OpenLayers map module.
2013-07-31
Changed uri format.
2012-02-16
Removed menus. Added new set of dumps.
2011-11-30
Search service supporting multiple criteria. Geo.LinkedData.es integration.
2011-09-04
New set of templates. Search engine.
2011-08-30
Bounding Box LIDS. Corrected bug on the representation of large files in the Google Maps gadget.
2011-08-25
Improved the mappings between the original data and the RDF model. Added GeoJSON and KMZ representation formats.
2011-08-2
First version

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