Satellite images: Sentinel-2 cloudless 2016 by EOX IT Services GmbH (contains modified Copernicus Sentinel data 2016), CC BY 4.0 · Towns: GeoNames (CC BY 4.0) · Lake outlines, area and depth: HydroLAKES (Messager et al. 2016), CC BY 4.0 · Water temperature and ice: LakeTEMP (Korver et al. 2024), CC BY 4.0 · Climate: NASA Langley Research Center POWER Project · Around the shore: © OpenStreetMap contributors (ODbL) · Airports: OurAirports (public domain) · Lake names: Wikidata (CC0) · Photos: Wikimedia Commons, author and licence under each photo · Flags: flag-icons (MIT)