CarnoyCarnoy is a former commune in the Somme department in Hauts-de-France in northern France. On 1 January 2019, it was merged into the new commune Carnoy-Mametz.GeographyCarnoy is situated on the D254 road, some northeast of Amiens.HistoryIn the First World War, the area was the site of heavy fighting, particularly during the Battle of the Somme. It was also one of the sites where large British Mines on the [first day of the Somme|mines were exploded] on the first day that battle.