Bavarian Prealps
The Tegernsee Mountains () form a mountain region between the River Isar in the west and the lake of Tegernsee as well as the Rottach, Weißen Valepp and Grundache south of the Tegernsee, in the east, and so form a part of the Bavarian Prealps. The Tegernsee Mountains are also the westernmost part of the Mangfall Mountains ("Mangfallgebirge").