Data sources and licenses

Map data and points of interest

• OpenStreetMap — points of interest, hiking routes, protected areas and glaciers. © OpenStreetMap contributors, licensed under ODbL.
• Refuges.info — mountain huts, bivouacs and shelters. Licensed under CC BY-SA.
• CampToCamp.org — via ferrata descriptions, difficulty grades and required gear. Licensed under CC BY-SA.

Map tiles

• OpenTopoMap — topographic tiles (CC BY-SA; data © OpenStreetMap contributors, SRTM).
• CARTO — base map tiles (© CARTO, data © OpenStreetMap contributors).
• Esri World Imagery — aerial imagery (© Esri and its data providers).

Encyclopedic data and photos

• Wikidata — place descriptions and links to articles. Licensed under CC0.
• Wikipedie — links to articles. Text licensed under CC BY-SA 4.0.
• Wikimedia Commons — photos of places. Licenses of individual files (CC BY, CC BY-SA, etc.) are listed on the file page on Commons.
• GMBA Mountain Inventory v2 — delineation of mountain ranges. Licensed under CC BY 4.0.
• Natural Earth — national borders used to determine each place's country. Public domain.
• Copernicus DEM GLO-30 — supplementary place elevations. 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.
• ESA WorldCover — land cover classes (forest, grassland…) for places. © ESA WorldCover project 2021, licensed under CC BY 4.0.

Avalanche forecasts

• avalanche.report (the ALBINA project, Euregio Tyrol–South Tyrol–Trentino) — aggregated avalanche bulletin data from European services. Licensed under CC BY 4.0.
• EAWS (European Avalanche Warning Services) — danger levels come from individual national and regional avalanche services; the delineation of micro-regions is from the eaws-regions project.

The displayed levels are daily maxima and serve for orientation only — always read the complete bulletin of the relevant avalanche service before a tour.

Software

• Leaflet — map library (BSD-2-Clause).
• Lucide — interface icons (ISC).
• Tabler Icons — map place category icons (MIT).
• Inter — font (SIL OFL 1.1).
• Space Grotesk — display font (SIL OFL 1.1).
• Tailwind CSS — styles (MIT) · Slim Framework — backend (MIT).