The Tract is one of the most inhospitable areas of the world , with some of the highest mountains including Broad Peak , Gasherbrum and Masherbrum , and is adjacent to the highest battlefield in the world at Siachen Glacier . The tract is bounded by the Kun Lun Mountains to the north , and by the Karakoram peaks to the south , including Broad Peak , K2 and Gasherbrum . On the southeast it is adjacent to the highest battlefield in the world in the Siachen Glacier region .