Before the construction of the Jungfraujoch railway tunnel, the approach from the glaciers on the south side was very long. The first direct route from the valley of Lauterbrunnen was opened in 1865 by Geoffrey Winthrop Young, H. Brooke George with the guide Christian Almer. They had to carry ladders with them in order to cross the many crevasses on the north flank. Having spent the night on the rocks of the Schneehorn () they gained next morning the Silberlücke, the depression between the Jungfrau and Silberhorn, and thence in little more than three hours reached the summit. Descending to the Aletsch Glacier they crossed the Mönchsjoch, and passed a second night on the rocks, reaching Grindelwald next day. This route became a usual until the opening of the Jungfraujoch.