Map data sources

The map is assembled from several independent services. Aerial imagery comes from national mapping agencies wherever they publish it openly, and from a global provider everywhere else. The drawn map is built on OpenStreetMap.

Aerial imagery

A national service is used wherever it covers the view, because it is sharper and more recent than any global mosaic. Outside those areas the global layer shows through.

Source: Esri, Vantor, Earthstar Geographics, and the GIS User Community

Drawn map

Geometry, names and contours behind the illustrated map.

• © OpenStreetMap
• © OpenMapTiles

3D terrain

Terrain Tiles (AWS Open Data, from the Mapzen Joerd project) drive the hillshading and the tilted 3D view.

The elevation model combines several public surveys, among them SRTM (NASA), EU-DEM (European Environment Agency) and GMTED (USGS). Full attribution and source list

Enrichment data

Place widgets (weather, hazards, geology, wildlife and more) draw on external open datasets. Each one is credited here with its exact required attribution.

Wikipedia text is credited next to the extract itself, only where one is shown, not centrally on this page.

Bird recordings credit the individual recordist next to the player, in addition to the source line above.

Legal status data

The legal status shown on a place page (allowed, gray zone, forbidden) is checked against these official datasets.