The fields around Barnard Castle can be quite green and pleasant, but a few miles further on you meet the snow line. BNC
The family was found near the snow line on the 2,820ft Beinn Mhic Chasgaig and airlifted to safety by RAF helicopter. BNC
Cliffs, stony slopes and alpine meadows in the high Caucasus, up to the snow line, using its very stout bill for scraping in the ground to uproot plants. BNC