Shadowmark Maps shows data published by national mapping, environment and heritage bodies and by open-data projects. This page lists every source, its licence and the credit it asks for. The same credits appear in the app, under the map's ⓘ button and in panel › Data and licences. Last checked 18 October 2026.
Shadowmark Maps is independent. It is not affiliated with, and does not represent, any government body or data provider, and none of them endorses it. Data is shown as its owners publish it; we compute the Pro views ourselves from Environment Agency data. Check the official source before you rely on anything.
| Area | Source | Licence | Credit |
|---|---|---|---|
| England | Environment Agency, LIDAR Composite DTM 1 m | Open Government Licence v3.0 | © Environment Agency copyright and/or database right 2022. All rights reserved. |
| France | IGN, RGE ALTI and LiDAR HD shading | Licence Ouverte 2.0 | Source : IGN – RGE ALTI, LiDAR HD, 2026 |
| Wallonia (Belgium) | Service public de Wallonie, Relief de la Wallonie MNT 2021–2022 | CC BY 4.0 | Source : Service public de Wallonie (SPW) - Relief de la Wallonie - MNT 2021-2022 |
| Bavaria (Germany) | Bayerische Vermessungsverwaltung, Geländerelief | CC BY 4.0 | Bayerische Vermessungsverwaltung |
| North Rhine-Westphalia (Germany) | Geobasis NRW, DGM-Schummerung | Datenlizenz Deutschland Zero 2.0 | Geobasis NRW |
| Saxony (Germany) | GeoSN, Höheninformationen Sachsen | Datenlizenz Deutschland Namensnennung 2.0 | GeoSN, dl-de/by-2-0 |
| Switzerland | swisstopo, swissALTI3D relief shading | swisstopo free geodata terms | © swisstopo |
| Austria | basemap.at, Gelände | CC BY 4.0 | Datenquelle: basemap.at |
| Czechia | ČÚZK, DMR 5G | CC BY 4.0 | © ČÚZK |
| Norway | Kartverket, national terrain model | CC BY 4.0 | © Kartverket |
| Canada | Natural Resources Canada, HRDEM mosaic | Open Government Licence – Canada | Contains information licensed under the Open Government Licence – Canada. |
| United States | U.S. Geological Survey, 3D Elevation Program | Public domain | Data available from U.S. Geological Survey, National Geospatial Program. |
The Shade, Detail, Relief, Sky-view and Combined views are computed by Shadowmark Ltd from the Environment Agency LIDAR Composite DTM 1 m. © Environment Agency copyright and/or database right 2022. All rights reserved. Used under the Open Government Licence v3.0; the shading is our processing of the data.
Scheduled Monuments from the National Heritage List for England. © Historic England 2026. Contains Ordnance Survey data © Crown copyright and database right 2026. Used under the Open Government Licence v3.0. The outlines show where monuments are; they are not a legal boundary. The official list is the authority.
| Layer | Source | Licence | Credit |
|---|---|---|---|
| Base map | OpenFreeMap vector tiles, OpenStreetMap data | ODbL 1.0 (data); OpenFreeMap terms | OpenFreeMap © OpenMapTiles Data from OpenStreetMap |
| Satellite | Esri World Imagery, through the ArcGIS Location Platform | Esri licence terms | Powered by Esri · Source: Esri, Vantor, Earthstar Geographics, and the GIS User Community |
| 3D terrain | Mapterhorn terrain tiles, built from national open elevation data | Each source's open licence (code: BSD-3-Clause) | Terrain: Mapterhorn and its sources |
Saved offline areas keep the national LiDAR, the Pro views, the base map and the monument outlines on your phone, as their licences allow. Satellite imagery is never saved offline, because its licence doesn't allow it.
Search runs on your phone, using place lists built into the app:
The full licence texts are included in the app.
Email support@shadowmarkmaps.com and we'll put it right.