Kleiner Daumen, Mountain summit in Allgäu Alps, Bavaria, Germany.

Kleiner Daumen is a 2,197 m summit in the Allgäu Alps of Bavaria, Germany. It forms the northeastern shoulder of the Großer Daumen, and the Engeratsgundsee lies southeast of the peak at 1,876 m. The surrounding terrain is steep, grassy and cut by narrow ridges.

The peak was first documented in Bavarian surveys during the 1800s when systematic Alpine mapping began. Since then it has remained a known location on hiking maps and climbing guides for the region.

Local climbers have used these routes for generations, keeping traditional Alpine practices alive in the region. Mountain shelters nearby serve as gathering places where hikers and climbers meet and share experiences.

Reaching the summit requires Alpine experience and proper climbing equipment, as the route includes steep sections. Weather can change rapidly, so watch the sky and be ready to turn back if conditions worsen.

The Kleiner Daumen is only the northeastern shoulder of the Großer Daumen, with a dominance of just 500 metres, so it is not an independent summit. The Engeratsgundsee lies southeast of the top at 1,876 metres above sea level.