Data and credits
- Hiking routes, huts, water, peaks, roads and names: map data © OpenStreetMap contributors, available under the Open Database License (ODbL). The hike data served here is a derivative database of OpenStreetMap and is also offered under the ODbL; the code that builds it is open source under the MIT licence, which covers the code only (data licences). Extracts from Geofabrik.
- Base map: tiles © OpenStreetMap contributors, served by the OpenStreetMap Foundation under its tile usage policy. Place search: towns and villages from GeoNames (geonames.org), CC BY 4.0.
- Elevation: FABDEM V1-2 — Hawker, L., Uhe, P., Paulo, L., Sosa, J., Savage, J., Sampson, C. and Neal, J. (2022), A 30 m global map of elevation with forests and buildings removed, Environmental Research Letters 17, 024016, doi:10.1088/1748-9326/ac4d4f; dataset: University of Bristol, doi:10.5523/bris.s5hqmjcdj8yo2ibzi9b4ew3sn, CC BY-NC-SA 4.0. FABDEM is produced using Copernicus WorldDEM-30 © DLR e.V. 2010-2014 and © Airbus Defence and Space GmbH 2014-2018 provided under COPERNICUS by the European Union and ESA; all rights reserved. The organizations in charge of the Copernicus program by law or by delegation do not incur any liability for any use of the Copernicus WorldDEM-30. The elevation profiles and the elevation-derived values on this site (heights, gain, profile shape, steepness, slope aspect) are adapted from FABDEM and are shared under CC BY-NC-SA 4.0, non-commercially.
- Land cover: © ESA WorldCover project 2021 / Contains modified Copernicus Sentinel data (2021) processed by ESA WorldCover consortium. Zanaga, D. et al. (2022), ESA WorldCover 10 m 2021 v200, doi:10.5281/zenodo.7254221; CC BY 4.0. Land-cover shares and the waterside share per hike are computed from it.
- Climate: CHELSA V2.1, 1981–2010 normals — Karger, D.N., Conrad, O., Böhner, J., Kawohl, T., Kreft, H., Soria-Auza, R.W., Zimmermann, N.E., Linder, H.P. and Kessler, M. (2017), Climatologies at high resolution for the earth's land surface areas, Scientific Data 4, 170122, doi:10.1038/sdata.2017.122; data from CHELSA via EnviDat, doi:10.16904/envidat.228.v2.1, CC0 1.0. Per-hike monthly averages are computed from it.
- Drive time: Valhalla routing engine (MIT), on OpenStreetMap roads.
- Coverage map: country shapes made with Natural Earth (public domain), shaded from the hikes in the catalog.
- Software: Leaflet (BSD-2-Clause), FastAPI (MIT), NumPy (BSD), Shapely (BSD), scikit-learn (BSD); when visits are counted, GoatCounter’s counting script (ISC), served from this site.