The name "Mons-la-Trivalle" translates to "mount of three valleys," reflecting its unique location at the confluence of the Héric, Orb, and Jaur valleys
The village’s name, Mons-la-Trivalle, sounds like it could mean "Mount of Three Valleys" (mons = mountain, tri = three, valle = valley). But locals joke that the "Trivalle" actually refers to the three mischievous mouflons (wild Corsican sheep) introduced in the 1950s, who now outnumber humans in the area.