Masherbrum (also known as K1) is located in the Ghanche District, Gilgit Baltistan of Pakistan. At 7,821 metres (25,659 ft) it is the22nd highest mountain in the world and the 9th highest in Pakistan. It was the first mapped peak in the Karakoram mountain range, hence its name.
The meaning of the name “Masherbrum” is not entirely clear. It may come from mashadar (muzzle-loading gun) plus brum(mountain), from the resemblance of the double summit to an old muzzle-loader. It may also come from masha (queen or lady), giving “queen of peaks.” Other meanings have also been suggested.
Masherbrum is the highest peak of the Masherbrum Mountains, a subrange of the Karakoram range. It is a large and striking peak, which is somewhat overshadowed by the nearby 8,000 metres (26,000 ft) peaks of the main range of the Karakoram which includes four of the fourteen Eight-thousanders, namely K2, Gasherbrum I, Broad Peak and Gasherbrum II.
The Masherbrum Mountains lie to the south of the Baltoro Glacier and the main range of the Karakoram lies to the north of the Baltoro. The main range is the continental divide of southern Asia. Rivers to the south flow into the Arabian Sea. Rivers to the north flow to the Yellw Sea.
The Baltoro Glacier is the route most commonly used to access the 8000m peaks of the Karakoram, and many trekkers also travel on the Baltoro. Masherbrum also lies at the north end of the Hushe Valley, which serves as the southern approach to the peak.