Colle delle Finestre is a mountain pass in the Cottian Alps, in the Italian region of Piemonte, Italy, linking the Susa Valley and Val Chisone. The road was built around 1700 to gain access to the fortresses in the area, mainly the Forte di Fenestrelle.
The road is very popular for both cyclists and motorbikes with magnificent views of the surrounding mountain ranges, it serves as a tourist attraction however be aware that around 8 kms of road leading to the summit from the Susa end while being a decent road has not been asphalted. From Susa the mountain pass is 18.6 kilometres long at an average of 9.1% , the maximum gradient being 14%.
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