In December 2012, Hamish Pritchard of the British Antarctic Survey (BAS) embarked on an expedition through the Staccato Peaks, he and his accompanists arrived at the Shostakovich Peninsula, and trekked inland in an eastward direction, they reached Hageman Peak shortly afterwards, and marched into the central zone of Staccato Peaks, here, a two-man field camp was established at the base of Duffy Peak overnight. After disestablishing the minor field camp, Pritchard's team continued to travel eastward before they left the geographical vicinity of these peaks, after traveling an elapsed distance of almost 40 kilometers, Pritchard arrived at Mimas Peak, where he began his successful ascent of this topographical feature, on 16 December 2012, Hamish Pritchard became the first individual to ascend to the summit of Mimas Peak, while ascending to the summit of this peak, rock samples were detected by Pritchard, he concluded that these summits must have emerged from retreating ice sheets hundreds of years ago.[citation needed]