Daumberg, Mountain summit in the Odenwald, Hesse, Germany

Daumberg is a mountain summit in the Odenwald region of Hesse, reaching 462 meters high. The peak sits surrounded by forested slopes that form part of this larger highland area.

The Daumberg is the exposed feeder pipe of an extinct volcano whose cone has been eroded away. Its rhyolite, formerly called quartz porphyry, is assigned to the Wachenberg quartz porphyry subformation of the Schriesheim Formation, introduced in 2009 and dated to the Asselian stage of the Lower Rotliegend. The rock was once quarried in a quarry and used mainly as gravel for railway and road construction.

The name Grundelbach, a stream rising on the Daumberg, gave the municipality of Grundelbachtal its name from 1971 to 1972; today that area belongs to Gorxheimertal. The Christmas tree plantations on the slopes are worked plots, visible as rows of young firs among the forest.

The Daumberg lies south of Trösel in the municipality of Gorxheimertal, on the Hesse–Baden-Württemberg border, and is opened up by many extended hiking trails. The northern slope is used for skiing in winter. A transmission mast stands on the summit, giving the hill its recognisable outline.

The northern slope becomes a skiing destination in winter and hosts grass skiing competitions in summer. This dual use throughout the year makes it an unusual place where two very different sports take place seasonally.