Credits and data sources

Credits

Photos are from Wikimedia Commons, used under each file’s Creative Commons licence. Open a file to see its author and licence.

3D valley map

Satellite imagery: Sentinel-2 cloudless by EOX IT Services GmbH (contains modified Copernicus Sentinel data 2016), licensed CC BY 4.0.
Terrain: Terrain Tiles by Mapzen on AWS, from SRTM and other public elevation data.