A sharp, narrow mountain ridge or spur, produced by glaciation, is known as an Arête.
range
Another word for mountain ridge is arête which is the French word for edge or ridge.
His glasses slid down the ridge of his nose. I'll walk the ridge line today.
ridge
The answer is ARETE
In Irish it's iomaire (furrow) / droim sléibhe (mountain ridge)
The ridge of the mountain offered stunning views of the valley below.
A thin mountain ridge is known as a mountain crest or a mountain spine.
a ridge
Arete
My Blue Ridge Mountain Boy was created on 1969-09-29.
Mountain Pine Ridge Forest Reserve was created in 1944.
you can find it in the blue ridge moutains