Trettachspitze, Mountain summit in Allgäu Alps, Bavaria, Germany

Trettachspitze is a rocky summit in the Allgäu Alps displaying a distinctive horn-like shape visible from multiple viewpoints. Its steep rock faces create a striking vertical profile that dominates the surrounding landscape.

The first ascent occurred in 1855 when three brothers, including a 13-year-old, climbed from the Stillach valley to reach the summit. This climb marked an important moment in the exploration of the Allgäu Alps.

The Trettachspitze is nicknamed the "Allgäu Matterhorn" for its steep, narrow rock horn seen from west and east. With Mädelegabel and Hochfrottspitze it forms the "Dreigestirn" above Einödsbach, a trio often admired by climbers and hikers. It is the only high rocky summit of the Allgäu Alps lying entirely on German soil.

Established climbing routes depart from Waltenberger Haus with varying difficulty levels depending on the chosen path. The northwestern ridge provides a more accessible option, while other routes require advanced climbing skills and experience.

The summit is composed of Main Dolomite, a rock formation particularly resistant to weathering and erosion. This geological composition contributes to the mountain's stable structure and longevity.