| 11. | The ouvrage consists of one entry block and two observation blocks at an altitude of.
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| 12. | If the exit block is unreachable from the entry block, an infinite loop may exist.
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| 13. | Work for the unbuilt second phase included a separate entry blocks and an 81mm mortar turret block.
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| 14. | The " ouvrage " consists of two entry blocks and one observation block facing Italy.
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| 15. | The ouvrage consists of two entry blocks and one observation block facing Italy at an altitude of.
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| 16. | The ouvrage consists of one entry block and two artillery blocks facing Italy at an altitude of.
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| 17. | The ouvrage consists of one entry block, four artillery blocks and two observation blocks facing Italy.
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| 18. | The ouvrage consists of one entry block, two artillery blocks and one observation block above Sospel.
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| 19. | The ouvrage consists of one entry block, two artillery blocks and one observation block facing Italy.
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| 20. | The entry block and an artillery block were not completed, and a further block was never built.
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