Claim: Verdabbio is a former municipality in the district of Moesa which is in a former administrative district in the canton of Graubunden, Switzerland and is in the valley of the eponymous Moesa River.
Evidence: Verdabbio is a former municipality in the district of Moesa in the Swiss canton of Graubünden. Moesa District, often referred to as Moesano, is a former administrative district in the canton of Graubünden, Switzerland. It had an area of 473.74 km (182.91 sq mi) corresponding to the Val Mesolcina, the valley of the eponymous Moesa River.