The highest peaks of the Western Alps and Eastern Alps, respectively, are Mont Blanc, at <answer>4,810 m</answer> (15,780 ft) and Piz Bernina at 4,049 metres (13,284 ft). The second-highest major peaks are Monte Rosa at 4,634 m (15,200 ft) and Ortler at 3,905 m (12,810 ft), respectively
How tall is the peak at Mont Blanc? 
4,810 m