One of the principal activities of the IINH is to map the distribution of organisms, plant communities, habitat types, and bedrock and surficial deposits (including landslides). The IINH has published geological maps, vegetation maps, a map of habitat types and important bird areas, a map of protected areas and geoheritage sites, and a map of seal haul-outs around Iceland.

In collaboration with the National Land Survey of Iceland, users can now download GIS data from the IINH free of charge.