Landfræðilegt upplýsingakerfi
Landfræðileg upplýsingakerfi, landupplýsingakerfi eða LUK eru kerfi sem eru notuð við að greina og birta landfræðileg gögn.

Tenglar

Frjáls hugbúnaðir í LUK-kerfum 
 GRASS - Frjálst og opið GIS kerfi 
 Saga OsGeo.Org og GRASS

Önnur LUK-kerfi 
 IDRISI
 ERDAS Imagine
 ESRI 
 SmallWorld
 InterGraph GeoMedia
 Manifold
 MapInfo
 MS MapPoint

LUK-gagnasöfn á netinu 
 Federal Geospatial Data Clearinghouse Search Engine  
 GIS Data Depot  
 The Geography Network (ESRI's data clearinghouse and map services)  
 Geospatial One Stop - U.S., Federal, State & Local GIS Data  
 National Atlas of the United States - US biology, geology, demography, environmental, water and much more.  
 The National Map - Access to high-quality, geospatial data from the USGS 
 Starting the Hunt: Guide To Mostly On-line And Mostly Free U.S. Geospatial Data 
 National Historical Geographic Information System - aggreagate census data with boundary files