Mont Saint-Quentin overlooks the Somme River in the region of Picardie approximately 1.5 km north of the town of Péronne, Somme, France. The hill is about 100 metres high but as it is situated in a bend of the river it dominates the whole position and is of strategic significance. During World War I, it was a key to the German defence of the Somme line and was the last German stronghold. Its location made it an ideal observation point, and strategically, the hill's defences guarded the north and western approaches to the town of Péronne.