Í markalaginu eru ýmis mörk lands og eru þetta allt flákalög og þau sýna eftirfarandi: skiptingu landsins eftir sveitarfélögum, skiptingu landsins eftir umdæmi sýslumanna, lögregluumdæmi og skiptingu landsins í dómstóla í héraði.

Þekjan sýnir orkuspársvæði sem koma fram í orkuspá Orkustofnunar. Það eru svæðin Suðurnes, Reykjavík, Vesturland, Vestfirðir, Norðurland, Austurland og Suðurland. Svæðin eru aðeins öðruvísi en í hefðbundinni landshlutaskiptingu þar sem sú skipting er til komin vegna uppbyggingar flutningskerfisins.

EN: Groundwaterbodies in Iceland as reported to WISE on 22.12.2018. "Groundwater" means all water which is below the surface of the ground in the saturation zone and in direct contact with the ground or subsoil. For further description of dataset fields and field valuessee GML schema here: http://dd.eionet.europa.eu/schemas/WFD2016/GML_GroundWaterBody_2016.xsd IS: Grunnvatnshlot á Íslandi miðað við skil inn í WISE upplýsingakerfið þann 22.12.2018. "Grunnvatn" merkir vatn, kalt eða heitt, sem er neðan jarðar í samfelldu lagi, kyrrstætt eða rennandi, og fyllir að jafnaði allt samtengt holrúm í viðkomandi jarðlagi. Nánari lýsing á eigindum og gildum gagnasettsins má finna í GML skema hér. Um er að ræða grunnvatnshlot sem notuð eru til að gefa upp ástand vatns á Íslandi. Nánari lýsing á eigindum og gildum gagnasettsins má finna í GML skema hér: http://dd.eionet.europa.eu/schemas/WFD2016/GML_GroundWaterBody_2016.xsd

Riparian zones represent transitional areas occurring between land and freshwater ecosystems, characterised by distinctive hydrology, soil and biotic conditions and strongly influenced by the stream water. They provide a wide range of riparian functions (e.g. chemical filtration, flood control, bank stabilization, aquatic life and riparian wildlife support, etc.) and ecosystem services. The Riparian Zones products will support the objectives of several European legal acts and policy initiatives, such as the EU Biodiversity Strategy to 2020, the Habitats and Birds Directives and the Water Framework Directive. Land Cover/Land Use (LC/LU) classification is tailored to the needs of biodiversity monitoring in a tailored buffer zone along large and medium-sized European rivers (with Strahler levels 3-8 derived from EU-Hydro). LC/LU is extracted from VHR satellite data and other available data in a buffer zone of selected rivers. The classes follow the pre-defined nomenclature on the basis of MAES typology of ecosystems (Level 1 to Level 4) and Corine Land Cover, providing 80 distinct thematic classes with a Minimum Mapping Unit (MMU) of 0.5 ha and a Minimum Mapping Width (MMW) of 10 m. The production of the Riparian Zones products was coordinated by the European Environment Agency in the frame of the EU Copernicus programme.

Riparian zones represent transitional areas occurring between land and freshwater ecosystems, characterised by distinctive hydrology, soil and biotic conditions and strongly influenced by the stream water. They provide a wide range of riparian functions (e.g. chemical filtration, flood control, bank stabilization, aquatic life and riparian wildlife support, etc.) and ecosystem services. The Riparian Zones products support the objectives of several European legal acts and policy initiatives, such as the EU Biodiversity Strategy to 2020, the Habitats and Birds Directives and the Water Framework Directive. Green Linear Elements (GLE) are ecologically significant, structural landscape elements which act as important dispersion vectors of biodiversity. GLEs comprise hedgerows and lines of trees and offer a wide range of ecosystem services: they are linked to both landscape richness and fragmentation of habitats, with a direct potential for restoration, and contribute also to hazard protection. Green linear elements form part of the Green Infrastructure and are specifically addressed in the EU Biodiversity Strategy 2020. The GLE product provides reliable and detailed geospatial information on the occurrence and spatial distribution of: Small linear vegetation features such as hedgerows, scrub and tree rows with a minimum length of 100m and a width of up to 10m; Isolated patches of trees and scrub with a size between 500 m² and 0.5 ha. Green linear elements including trees and hedgerows with 100m minimum length and 500 m² Minimum Mapping Unit (MMU)

Línurnar sýna friðunarsvæði, þar sem eldi laxfiska (fam. salmonidae) í sjókvíum er óheimilt skv. auglýsingu nr. 460/2004.

This data includes all defined hiking trails within Vatnajökull National Park, and selected trails near the park. The trails are drawn from hiking maps that the park has published since it was founded in 2008. The maps have been updated regularly since, last update was in 2019, (Snæfell area and a large part of the western region). These hiking maps can be viewed by selecting “Hiking map, click on frame” in the Vatnajökull National Park Mapview, (see link below).

Línurnar sýna friðunarsvæði, þar sem eldi laxfiska (fam. salmonidae) í sjókvíum er óheimilt skv. auglýsingu nr. 460/2004.

The European Urban Atlas provides reliable, inter-comparable, high-resolution land use and land cover data for 800 Functional Urban Area (FUA) for the 2012 reference year in EEA39 countries. The spatial data can be downloaded together with a map for each FUA covered and a report with the metadata for the respective area. Additional information (product description, mapping guidance and class description) can be found here: https://land.copernicus.eu/user-corner/technical-library/urban-atlas-2012-mapping-guide-new Commission Directorate-General for Regional and Urban Policy and the Directorate-General for Enterprise and Industry in the frame of the EU Copernicus programme, with the support of the European Space Agency and the European Environment Agency.

Umsóknin um Þingvelli á heimsminjaskrá var lögð fram í febrúar 2003 og var hún samþykkt á fundi heimsminjanefndar UNESCO í júlí 2004. Þingvellir eru þjóðgarður sem var með lögum stofnaður árið 1930.