I’m looking for a word or a phrase for describing this kind of road which usually is constructed in the mountain areas, but not only:
image a representative sample from Google images, query = transfagarasan
In my language we call this serpentine a word used as a noun (not adjective) to describe its shape.
If I wanted to write an article about this road, a road constructed in the mountains provided with many turns and angles like in the above link, which word would be more appropriate to use?