The core of Nanga Parbat is a long ridge trending southwest-northeast. The southwestern portion of this main ridge is known as the Mazeno Ridge, and has a number of subsidiary peaks. In the other direction from the summit, the main ridge starts as the East Ridge before turning more northeast at Rakhiot Peak (7,070 m), about 4 km northeast of the Nanga Parbat summit. The Silver Saddle (Silbersackel) is about halfway in-between Rakhiot Peak and Nanga Parbat summit. The south/southeast side of the mountain is dominated by the Rupal Face, often referred to as the highest mountain face in the world: it rises an incredible above its base. The north/northwest side of the mountain, leading to the Indus, is more complex. It is split into the Diamir (west) face and the Rakhiot (north) face by a long ridge. There are a number of subsidiary summits, including the North Peak (7,816 m) some 3 km north of the main summit.