The Samina originates in Liechtenstein. In the course of time, it formed the Saminatal (Samina Valley), the most western valley of Rätikon and side valley of the Walgau. The Saminatal makes up to one third of the territory of Liechtenstein. It has a length of approximately (Liechtenstein: (including its source rivulets, the 2nd longest river of the principality), Austria: ).