Alpentor

During the Würm glaciation, where several glaciers from different Alpine valleys met or flowed through narrow passages at the edge of the Alps, ice was piled up.

By contrast with such large glaciers, quite isolated valleys, such as those of the Iller or the Lech, could only produce much smaller glacial tongues.

One of the few examples at the southern edge of the Alps was the comparatively small alpentor of today's Tagliamento valley.

A tributary, the Isar valley glacier flowed south from Bad Tölz between the Blomberg and the Rechelkopf at a height of about 1,000 m (3,300 ft) into the plains.

At the Walchensee and Kochelsee lakes a tributary of the Inn Glacier pushed through over the Kesselberg at a height of 1,400 m (4,600 ft) between the Jochberg and the Herzogstand.