Grubigstein, Mountain summit near Lermoos, Austria

Grubigstein is a 2,233 m summit at the eastern edge of the Lechtaler Alpen, a craggy three-peaked rise at the end of the Gartnerwand east ridge, about 6 km southwest of Ehrwald above Lermoos. The 3,168 m Lermooser Tunnel of the Fernpassstraße (B179) runs through its northeast and east foot. A cable car reaches the private Gipfelhaus at 2,028 m, and the Wolfratshauser Hütte (1,753 m) of the German Alpine Club stands on a grassy ridge to the north.

The mountain was developed with its first ski lifts in the mid-20th century, transforming the nearby area of Lermoos into a major winter sports destination. This growth brought visitors from across the region and established it as an important place for skiing.

The Grubigstein is the local mountain of Lermoos, and its ski area belongs to the family firm Bergbahnen Langes, which also runs the Marienberg ski area. On 2 February 2006, 1,928 skiers descended the slope at once carrying torches, setting a world record for a torchlight run. In 2007 the ski area received the 'geheimtip' award from Skiresort Service International.

From the Grubigsteinbahn top station the main summit is about an hour's walk; from Lermoos or Biberwier in the valley it takes roughly four hours. The Grubigsteinbahn, Grubigalmbahn and Gamsjet also run in summer, giving walkers a head start into the trails. The Lermooser Tunnel of the Fernpassstraße (B179) passes through the mountain's northeast and east foot.

On 2 February 2006, 1,928 skiers descended the Grubigstein slopes holding torches at the same time, setting a world record for the largest torchlight run. The ski area was named a "secret tip" in 2007 by the testing organisation Skiresort Service International.