What got its name because of this sketch?

T.G. Montgomerie was surveying the mountains of Kashmir. During this survey he saw, in the far distance, a tall and conspicuous mountain in the direction of the Karakorams and immediately named it K1 (‘K’ stands for Karakoram). Later on, it turned out to be the beautiful mountain of Hushe valley in Khaplu area of Baltistan, called Masherbrum by locals. He also saw another tall and dominating summit behind K1 and named it K2, which turned out to be “Chogori”. The name K2, however, still stands.
The visual is Montgomerie’s original sketch in which he applied the notation K2.