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.

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

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).

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)

Ræktunarsvæði er afmarkað svæði sjávar nægjanlega stórt til að rúma þann ræktunarbúnað sem notaður er á viðkomandi svæði. Yfirleitt er um að ræða línur sem strekktar eru á milli flot bauja eða sérstaka ræktunarfleka með lóðréttar ræktunarlínur fáeina metra niður undir yfirborð sjávar . Svæðið er merkt með löglegum sjómerkjum þannig að sjófarendur eiga að geta varast þau, enda einnig merkt inn sjókort Landhelgisgæslunnar. Einungis er ræktuð Bláskel (Kræklingur).

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.

Landinu skal skipt upp í eftirfarandi heilbrigðisumdæmi, sbr. reglugerð 387/2015: Heilbrigðisumdæmi höfuðborgarsvæðisins. Heilbrigðisumdæmi Vesturlands. Heilbrigðisumdæmi Vestfjarða. Heilbrigðisumdæmi Norðurlands. Heilbrigðisumdæmi Austurlands. Heilbrigðisumdæmi Suðurlands. Heilbrigðisumdæmi Suðurnesja. Í heilbrigðisumdæmum landsins starfa eftirfarandi heilbrigðisstofnanir: Heilsugæsla höfuðborgarsvæðisins, innan heilbrigðisumdæmis höfuðborgarsvæðisins. Heilbrigðisstofnun Vesturlands, innan heilbrigðisumdæmis Vesturlands. Heilbrigðisstofnun Vestfjarða, innan heilbrigðisumdæmis Vestfjarða. Heilbrigðisstofnun Norðurlands, innan heilbrigðisumdæmis Norðurlands. Heilbrigðisstofnun Austurlands, innan heilbrigðisumdæmis Austurlands. Heilbrigðisstofnun Suðurlands, innan heilbrigðisumdæmis Suðurlands. Heilbrigðisstofnun Suðurnesja, innan heilbrigðisumdæmis Suðurnesja.

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.

Vatnajökull National Park was founded on June 7th 2008, although the act on Vatnajökull National Park was entered into force on May 1st 2007. It is the largest national park in Iceland by far, 14,967 km2. Vatnajökull National Park was inscribed as a UNESCO World Heritage Site on July 5th 2019. The boundary of Vatnajökull National Park, after its latest expansion on September 22nd 2021. The boundary is drawn in accordance to regulation on Vatnajökull National Park, No 300/2020, with later amendments. Disclaimer: If there is a difference between the data and the regulation text, then the regulation text applies. The data also includes all previous boundaries of the national park as well as current boundaries of operating areas.

Eldissvæði er svæði sem úthlutað er rekstarleyfishafa. Rekstrarleyfishafi hefur þá heimild til að hafa eldisbúnað til að ala fisk innan þess svæðis skv. skilyrðum rekstrarleyfisins.