In July and August our 14-member Polish expedition climbed eight new peaks from what we believe to be a previously unexplored valley in the Koh-e-Ak Su mountains of the Little Pamir, immediately east of the lower Wakhjir Valley. Half the expedition members travelled overland from Poland, a distance of ca 5,000km to the roadhead at Sarhad-e-Boroghil in the Wakhan Corridor. From here we trekked east for five days, and on July 21 established base camp at ca 4,400m at the foot of the glacier (later named the Polish Glacier) in the Uchjilga Valley, close to the entrance of which lies a Kyrghiz summer settlement of the same name.