Valsot is a municipality in the Engiadina Bassa/Val Müstair Region in the canton of the Grisons in the extreme east of Switzerland . On 1 January 2013 the municipalities of Ramosch and Tschlin merged to form the new municipality of Valsot.

In 1956–58, on the hill Mottata (ca. 1.5 kilometers (0.93 mi) north-east of Ramosch), a significant prehistoric site was discovered. The Mottata site contains three settlement horizons, two from the mid and early Bronze Age (Laugen-Melaun/Luco-Meluno culture) and one from the early Iron Age (Fritzens-Sanzeno culture).

While Bronze and Iron Age items have been found in Tschlin, the first mention of the village is in the 10th century.