Bietschhorn, Mountain summit in Valais, Switzerland.

Bietschhorn is a 3,934-meter (12,907 feet) peak located in Valais within the protected Jungfrau-Aletsch area. The summit can be approached from two mountain shelters, each offering different climbing routes and difficulty levels.

The first documented ascent took place in 1859 when mountaineer Leslie Stephen reached the summit with local guides. This achievement marked an important moment in the region's climbing history.

The mountain sits at the heart of the Jungfrau-Aletsch area, a UNESCO World Heritage Site that draws mountaineers and hikers from around the world. Its presence shapes how people connect with and experience this Alpine region.

Access is mainly from two mountain shelters, with the Nordgrat route being particularly demanding. Climbers should bring proper equipment and have experience in alpine conditions.

The Bietschhorn was mentioned in a 1233 purchase contract, making it the first mountain in the Swiss Alps recorded in a document; the deed concerned a meadow on the mountain called de Bietch. It appeared on a map in 1544 in the Cosmographia. Four summit crosses have stood on the peak, the first carried up by locals on 27 August 1940.