Somosierra (mountain pass)

Somosierra is a mountain pass in the Sierra de Guadarrama north of Madrid in Spain.

It connects the north of the Community of Madrid with the east of the province of Segovia.

It has an altitude of 1,434 metres (4,705 ft) and is crossed by the A-1 (E5) road through Túnel Juan Manuel Morón Garcia, a short twin-bore tunnel named in honour of a civil engineer who worked on the Spanish motorway network.

The road was originally a track opened up by Napoleon to provide a direct route to Madrid.

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