Acknowledgments
TrailReplay is powered by open-source software and open data providers. We’re grateful to the teams and communities below.
🗺️ MapLibre GL JS
Open-source WebGL map rendering powering the map experience.
License: BSD-3-Clause🛰️ Esri World Imagery + Clarity
High-resolution satellite basemaps and clarity imagery.
© Esri & partners🕰️ Esri Wayback
Historical satellite imagery releases for date-based exploration.
© Esri & partners🌐 OpenStreetMap
Community-built map data used across basemaps and overlays.
License: ODbL🗻 OpenTopoMap
Topographic tiles used for terrain visualization.
License: CC-BY-SA🗺️ Carto Labels
Place name label overlay used on satellite basemaps.
© CARTO🏔️ OpenTopography (ASTER GDEM)
Elevation raster data powering hillshade and 3D terrain.
OpenTopography📐 AWS Terrain Tiles (Terrarium)
Elevation tiles for slope and aspect overlays.
AWS Terrain Tiles⛷️ OpenSnowMap
Ski piste overlay data from the OpenSnowMap project.
CC-BY-SA + ODbL📍 Pinhead
Public domain map icons used for route annotations, by Wayside Mapping and contributors (pinhead.ink).
License: CC0🔤 Open-source typefaces
Inter, Source Serif 4, JetBrains Mono, Barlow Condensed and Montserrat are self-hosted for replay labels, statistics and annotations.
License: SIL Open Font License 1.1Attribution Notes
- Esri imagery sources include Esri, Maxar, Earthstar Geographics, CNES/Airbus DS, USDA, USGS, AeroGRID, IGN, and the GIS User Community.
- OpenSnowMap overlays include OpenStreetMap contributors (ODbL) and OpenSnowMap (CC-BY-SA).
- Elevation and terrain products are derived from OpenTopography datasets.