Trois-Monts (; French for 'three-mountains') is a former commune in the Calvados department in the Normandy region in northwestern France. On 1 January 2019, it was merged into the new commune Montillières-sur-Orne. Population See also Communes of the Calvados department References Former communes of Calvados (department) Calvados communes articles needing translation from French Wikipedia Populated places disestablished in 2019