To the north, the peaks of Trisul (7120 metres) and Nanda Ghunti (6309 metres) rise above the alpine ridges.

They constantly migrate to different areas from the alpine ridges in the summer, and to the tree-line in the winter.

Surveys in 2002 and 2003 suggest that ridgetop vegetation cover is lower, and barren areas along alpine ridges are more prevalent in areas with relatively high goat use.

This mountain can be reached from other summits by crossing high alpine ridges and glaciers.

This is classic high Sierra country: barren alpine ridges and glacially scoured lake-filled basins.

An hour's walk in either direction can take you from tropical jungles to an alpine ridge.

Our trail then crosses alpine ridges that support the summer camps of yak herders' from Kharta village.

Dall sheep are found in relatively dry country and they frequent a special combination of open alpine ridges, meadows, and steep slopes with extremely rugged "escape terrain" in the immediate vicinity.

The rhythm of the monster's strokes sent combers rumbling from the alpine ridge of its gleaming back.

The Côte d'Or scarp arises where a broad, relatively shallow graben has formed as a result of an interaction between the forces raising the alpine ridges and the Massif Central.