The Matterhorn has a pyramidal shape with four faces nearly facing the four compass points. Three of them (north, east and west) are on the Swiss side of the border and watershed (Mattertal valley) and one of them (south) is on the Italian side of the border (Valtournenche valley). The north face overlooks the Ober Gabelhorn (7 km away) across the Zmutt Glacier and valley (above Zermatt), the east face overlooks the Gorner Glacier system between the Gornergrat and Monte Rosa (respectively 10 and 17 km away) across the Theodul Pass, the west face overlooks the upper basin of the Zmutt Glacier between the Dent Blanche and the Dent d'Hérens (respectively 7 and 4 km away) and the south face fronts the resort town of Breuil-Cervinia and overlooks a good portion of the Valtournenche. The Matterhorn does not form a perfect square pyramid, as the north and south faces are wider than the west and east faces. Moreover, the latter faces do not actually meet on the summit but are connected by a 100-metre-long horizontal west–east ridge between the north and south faces.