Monte Rosa (Italian: [ˈmonte ˈrɔːza]; also used in German) or Mont Rose (French: [mɔ̃ ʁoz]) is a huge ice-covered mountain in the Alps, located on the watershed between northern and southern Europe. Its main summit, named Dufourspitze in honor of the surveyor Guillaume-Henri Dufour, culminates at 4,634 metres (15,203 ft) above sea level and is followed by the three nearly equally high subsidiary summits of Nordend, Zumsteinspitze and Signalkuppe.