Pass da Costainas
Pass da Costainas is a high mountain pass at an elevation of 2.254m (7,395ft) above the sea level, located in the most eastern corner of Switzerland, in the canton of Graubünden.
The road to the summit, located within the Sesvenna Range, is gravel, rocky, tippy and bumpy at times. The road is usually impassable from October to June (weather permitting). Great trail for experienced wheelers. Avoid driving in this area if unpaved mountain roads aren't your strong point. Expect a trail pretty steep.