The Plattenberg is a mountain of the Lepontine Alps, located on the border between the Swiss cantons of Ticino and Graubünden. It lies approximately halfway between the lakes of Luzzone and Zervreila. References External links Plattenberg on Hikr Mountains of the Alps Alpine three-thousanders Mountains of Switzerland Mountains of Graubünden Mountains of Ticino Graubünden–Ticino border Lepontine Alps