On 3 August 1811, Joseph Bortis, Hieronymus Meyer, Alois Volken and Johann-Rudolf Meyer reached the summit of the Jungfrau (4,158 m) for the first time.
On 3 August 1811, Joseph Bortis, Hieronymus Meyer, Alois Volken and Johann-Rudolf Meyer reached the summit of the Jungfrau (4,158 m) for the first time.