Claim: Vignogn is a 7.90 km (3.05 sq mi) former municipality in  Switzerland with a historical population of 179 in 2000.
Evidence: Vignogn is a former municipality in the district of Surselva in the canton of Graubünden in Switzerland. The historical population is given in the following table: 2000 179 Vignogn 7.90 km (3.05 sq mi)