Col des Roches

Col des Roches
Col-des-Roches at Le Locle
Compass direction	west	east
Pass height	919  m above sea level M.
region	Region Bourgogne Franche-Comté	Canton of Neuchâtel
Valley locations	Morteau	Le Locle
expansion	Road tunnel / railway tunnel
Built	1805
Mountains	law
particularities	Le Locle cave mills
profile
Ø pitch	1% (119 m / 11.5 km)	0.1% (2 m / 2.5 km)
Max. Incline	7%
Map (Neuchâtel)
Coordinates , ( CH )	47 ° 3 '3 "  N , 6 ° 43' 13"  O ( 545 425  /  211325 ) coordinates: 47 ° 3 '3 "  N , 6 ° 43' 13"  O ; CH1903:  five hundred and forty-five thousand four hundred and twenty-five  /  211325

The Col des Roches is a bottleneck between the Swiss canton of Neuchâtel and France . It is located between the towns of Le Locle and Morteau .

geography

The valley of Le Locle is closed off to the west by a 100 m high rocky ridge. Since 1805 the road has overcome this obstacle with a tunnel with no incline on the Swiss side. The street height is 919  m . The border is 80 m west of the road tunnel, after the junction to the village of Les Brenets . The La Chaux-de-Fonds-Besançon railway line crosses the mountain in a 427 m long tunnel to the south. It also crosses the border between France and Switzerland.

The creek Le Bied flows through this obstacle in karst caves before it emerges again on the other side as Rançonnière (a tributary of the Doubs ). The cave mills of Le Locle operated in the caves from the 16th to the 19th century and can be visited today. The La Rançonnière hydropower station has been operated here with a gradient of 80 m since 1890 .

Web links

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