Data Portals/DGT Portugal (SNIG)

DGT Portugal (SNIG)

Portugal's national spatial data infrastructure from the Directorate-General for Territory, providing authoritative cartography and geoservices.

SNIG, run by Portugal's Directorate-General for Territory (DGT), is the national spatial data infrastructure. It coordinates and provides access to authoritative Portuguese geographic data: administrative boundaries, land use and land cover (COS), orthophotos, and topographic data.

Through SNIG and DGT services, these reference layers are available as downloads and OGC web services. It is the authoritative complement to the dados.gov.pt open data catalog for precise national cartography.

Frequently Asked Questions

SNIG is Portugal’s national spatial data infrastructure, coordinated by the Directorate-General for Territory (DGT), providing access to authoritative geographic data and services.

COS (Carta de Ocupação do Solo) is Portugal’s national land use and land cover dataset produced by DGT.

Yes. DGT provides WMS/WFS services for orthophotos, boundaries, and topographic data alongside downloads.

Details

AgencyDirectorate-General for Territory (DGT)
LevelNational
RegionEurope
CoveragePortugal
LicenseOpen (varies)
Formats
ShapefileGeoPackageWMS/WFSGeoTIFF
Update FrequencyPeriodic
Categories
PortugalNationalMapping Agency
Visit portalUse data in Atlas