Data sources
Everything on this site is built from open data. Here is exactly what comes from where, and under which licence.
OpenStreetMap
Route geometry, trail names, waymarking, surface, network, operator, administrative boundaries and national park outlines.
Licence: Open Database Licence (ODbL) 1.0
https://www.openstreetmap.org/copyrightAWS Terrain Tiles (Mapzen terrarium)
Elevation sampling along each route: gain, loss, high and low point, gradient and the profile chart.
Licence: Public domain and ODbL sources, see the dataset terms
https://registry.opendata.aws/terrain-tiles/Wikimedia Commons
Trail and park photography, matched by coordinates. Author and licence are shown with every image.
Licence: Varies per file, shown on the photo
https://commons.wikimedia.org/GeoNames
City locations and populations, used to build the hiking-near-city pages.
Licence: Creative Commons Attribution 4.0
https://www.geonames.org/Open-Meteo
Seven day weather forecast on trail and park pages.
Licence: CC BY 4.0, free for non-commercial and commercial use
https://open-meteo.com/OpenFreeMap
Vector map tiles and base cartography.
Licence: Open data, OpenStreetMap derived
https://openfreemap.org/
Corrections
If a route on this site is wrong, the most durable fix is to correct it in OpenStreetMap. Our pipeline re-imports regularly, so the change flows through here without anyone having to maintain a second copy of the truth.