Ultar a subrange of the Karakoram range. It lies about 10 km (6.2 mi) northeast of the Karimabad, a town on the Karakoram Highway in the Hunza Valley, part of the Gilgit District of Gilgit–Baltistan, Pakistan.
While not one of the highest peaks of the Karakoram, Ultar Sar is notable for its dramatic rise above local terrain. Its south flank rises over 5,300 metres (17,388 feet) above the Hunza River near Karimabad, in only about 10 km (6.2 mi) of horizontal distance. Combined with its strategic position at the end of the Batura Muztagh, with the Hunza River bending around it, this makes Ultar a visually striking peak.