Lenggries sits on the Isar River before it transitions into the Alpine foothills. To the east are the Tegernsee Mountains, to the west lies the home mountain of Lenggries known as the Brauneck with an elevation of over 1,555 meters above sea level. The Brauneck is a well known ski area tied together by lifts. The town of Lenggries sits 700 meters above sea level.