evidence: Part of the Southern Patagonian Ice Field with its white glaciers and aquamarine lakes is featured in this Copernicus Sentinel-2 image from 10 January 2023. [...] Straddling the border of Chile and Argentina, the ice field stretches across the Patagonian Andes for more than 350 km and is one of the largest ice masses on Earth outside the polar regions. Ice fields form as a result of accumulations of snow that turn into ice through years of compression and freezing. Shaped by the underlying topography, glaciers often form at the edges of an ice field.