As a consequence, the railway runs essentially within the Jungfrau Tunnel, built into the neighbouring Eiger and Mönch, to protect the line from snow and extreme weather.

Through that holding company it is part of the Allianz - Jungfrau Top of Europe marketing alliance, which also includes the separately owned Berner Oberland-Bahn and Schynige Platte-Bahn.

Source:[5] Additional locations along the line include Rotstock Station, at 2,520 m (8,268 ft), which was closed in 1903, and Stollenloch,[6][7][8] a person-sized tunnel-opening which exits directly onto the north face of the Eiger.

[9] The line runs using a 3-phase alternating current (AC) system which requires the trains to collect power from twin overhead wires using two pantographs (the third phase is earthed to the track).

In early 2008, Jungfraubahn Holding AG announced it was exploring the idea of an efficient fast form of access to the Jungfraujoch, using the world's longest tunnel-lift system, as an alternative to the rack railway.

A feasibility study was undertaken to determine if and how such a system—for example, as a fast lift or funicular—from the Lauterbrunnen Valley to the Jungfraujoch could be realised without disturbing the unique landscape of the UNESCO World Heritage Site.

The current rolling stock consists of twin-unit motorcoaches carrying up to 230 people per train which operate at 12.5 kilometres per hour (7.8 mph) on the steepest parts of the ascent.