The district comprises the valleys of the Lech, the Tannheimer Tal, and the so-called Zwischentoren between Reutte and Fern Pass. Mountain ranges in the district include parts of the Lechtal Alps, Wetterstein Mountains, Allgäu Alps and Tannheim Mountains. Prominent lakes include Plansee, Heiterwanger See, Haldensee, and Vilsalpsee.