Ouvrage La Séréna is a lesser work (petit ouvrage) of the Maginot Line's Alpine extension, the Alpine Line.

The ouvrage consists of one entry block at an altitude of 1,292 metres (4,239 ft).

Two more blocks were planned but not completed before the invasion of France in 1940.

[1] The ouvrage controlled the Col del la Séréna.

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