This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Avantposte du col des Fourches. en Vue de trois casemates de l'avantposte et own Bertrand Aot Mountain passes of AlpesMaritimes Secteur fortifi du Dauphin History of AlpesMaritimes
Page 2023 Free-images.com. All images are Public Domain