Around Mount Everest, the blinding white of the snow on the peaks contrasts strongly with the dirty appearance of the glaciers in the surrounding valleys – glaciers covered with rocky debris produced by intense weathering and erosion. Image from NASA’s Earth Observatory
Satellite view of Mount Everest and the surrounding peaks. The summits are covered with bright white snow. The icy glaciers in the valleys between the peaks are a dirty grey colour, covered by debris weathered from the slopes above them.