Gross Lohner, Limestone mountain summit in Bernese Oberland, Switzerland

The Gross Lohner is a limestone massif in the Bernese Alps between Adelboden and Kandersteg, its main summit, the Vorder Lohner, reaching 3,048 metres. From northeast to southwest the range also carries the Nünihorn (2,717 m), Hinder Lohner (2,929 m), Mittler Lohner (3,001 m) and Mittaghorn (2,678 m). The Bunderchrinde pass separates it from the Chlyne Lohner to the north.

The first tourist to climb the Lohner was Carl Durheim of Bern in July 1876. In August of that year, four Alpine Club members found a bottle on the summit bearing the names of the Kandersteg guides Ogi and Hari, dated 1875.

The name Lohner appears on swisstopo maps in the local dialect form Loner. The Bunderchrinde pass north of the massif carries the hiking route between Adelboden and Kandersteg. The Lohnerhütte, about halfway up the west flank, is reached by skilled hikers without climbing.

The climb requires experience and proper gear for technical rock work on the various routes available. The Lohnerhütte on the western side offers a resting point for those planning a full-day ascent.

The Lohner's three ridges are the only practical routes to the summit, and the recommended traverse for those comfortable with exposure runs from the Lohnerhüttli over the Mittaghorn and up the west ridge to the main peak. The massif is almost entirely scree-covered, so parties often rope up on the loose rock.