Lobuche is a Nepalese mountain which lies close to the Khumbu Glacier and the settlement of Lobuche. There are two main peaks, Lobuche East and Lobuche West. A permit to climb the mountain is required from the Nepal Mountaineering Association (NMA), which classifies Lobuche East (6,119m) as a "trekking peak" and Lobuche West (6,145m) as an "expedition peak". The permit is issued by Nepal Mountaineering Association and costs USD $350 during spring, USD $175 during autumn, and USD $175 during winter/summer. The easier, trekking peak, the East peak is climbed far more frequently than the West peak; however, most of those climbers only do so to reach a false summit that is still a few hours from the true summit of Lobuche East. Between the two peaks is a long, deeply notched ridge, with a steep drop and its considerable distance making an approach of the West peak from the East practically impossible.