Jungfraujoch

The Jungfraujoch (Swiss Standard German pronunciation: [ˈjʊŋfraʊˌjɔx], lit. "maiden saddle") is a saddle connecting two major 4000ers of the Bernese Alps: the Jungfrau and the Mönch. It lies at an elevation of 3,463 metres (11,362 ft) above sea level and is directly overlooked by the rocky prominence of the Sphinx. The Jungfraujoch is a glacier saddle, on the upper snows of the Aletsch Glacier, and part of the Jungfrau-Aletsch area, situated on the boundary between the cantons of Bern and Valais, halfway between Interlaken and Fiesch.

Since 1912, the Jungfraujoch has been accessible to tourists by the Jungfrau line, a railway from Interlaken and Kleine Scheidegg, running partly underground through a tunnel through the Eiger and Mönch. The Jungfraujoch railway station, at an elevation of 3,454 metres (11,332 ft) is the highest in Europe. It lies east of the saddle, below the Sphinx station, and is connected to the Top of Europe building, which includes several panoramic restaurants, shops, exhibitions, and a post office. Several tunnels lead outside, where secured hiking trails on the crevassed glacier can be followed, in particular to the Mönchsjoch Hut. The normal route to the Jungfrau and Mönch starts from there.

The Sphinx Observatory, one of the highest astronomical observatories in the world, provides an additional viewing platform at a height of 3,572 metres (11,719 ft), the second-highest in Switzerland. It can be reached by an elevator from the Jungfraujoch. The observatory houses one of the Global Atmosphere Watch's atmospheric research stations. The Jungfraujoch radio relay station, which is not accessible to the public, is installed west of the Jungfraujoch, on the Jungfrau ridge. It is Europe's highest radio relay station.

The Swiss- and Austro-Bavarian-German term Joch means "saddle", in this case referring to the ridge between two higher peaks, as recorded in the 14th century (Grimm, Deutsches Wörterbuch "bereits im 14. jahrh. als ortsname: des gotzhus zwing und ban vahet an Rotenhalden und denne die roten bachtalen uf unz an den grat, und den grat obnan hin ob Grüblen hin iemerme, unz an Joch. und ab Joch unz an Stoerben. weisth. 1, 4 (Zürich)").

The name Jungfrau ('Virgin'), which refers to the highest mountain overlooking the Jungfraujoch, is most likely derived from the name Jungfrauenberg given to Wengernalp, so named for the nuns of Interlaken Monastery, its historical owner. However, the "virgin" peak was heavily romanticized as a "goddess" or "priestess" only in late 18th- to 19th-century Romanticism. After the first ascent in 1811 by Swiss alpinist Johann Rudolf Meyer, the peak was jokingly referred to as Mme Meyer (Mrs. Meyer).

The Jungfraujoch is a snow saddle located directly between the summits of Mathildespitze (west) and Sphinx (east). It is, however, most notably the lowest point between the Jungfrau and the Mönch, respectively third and fourth highest mountains in the Bernese Alps, and the key col of the former. The south side (canton of Valais), almost flat, is constituted by the Jungfraufirn, one of the branches of the Aletsch Glacier, the longest in the Alps. From the south, the Jungfraujoch can be relatively easily accessed by mountaineers in two days from the region of Fiesch, via the Konkordia Hut. The north side (canton of Bern) is almost vertical with a difference of height of nearly 3,000 metres from the bottom of the valley at Interlaken, with no easy natural access. For those reasons, the only easy and quick access to the Jungfraujoch is through the 7 kilometre-long tunnel of the Jungfrau Railway, accessed via Kleine Scheidegg on the north side, the railway pass between Lauterbrunnen and Grindelwald.

Administrativelly, the Jungfraujoch is split between the territories of the municipalities of Lauterbrunnen and Fieschertal. Nearly all built infrastructure, including the Jungfraujoch railway station, Top of Europe complex and the Sphinx Observatory, are on the Valais side of the border, therefore in the municipality of Fieschertal. The ridge between the Jungfrau and the Mönch is a major European watershed as well. The north side is drained by the Weisse Lütschine, the Aare and the Rhine. The south side is drained by the Massa and the Rhone.

There is a tradition in the Bernese Oberland, supported by some documentary evidence, that a pass existed between Grindelwald and Fiesch in Valais in the late medieval period, later lost to the advancing glaciers. With the early development of tourism in Switzerland and the exploration of the High Alps in the 19th century, there were once again attempts to traverse the great ridge that encloses the head of the Aletsch Glacier, and connecting Fiesch with Grindelwald and Wengernalp. Four such routes were found, with the Jungfraujoch and the Eigerjoch being among the most difficult passes in the Alps, despite the former having a relatively easy southern approach on the Aletsch Glacier.