Valley is a municipality in the district of Miesbach in Bavaria in Germany. The municipality of Valley holds, as of 2006, 2949 inhabitants. Valley is also the name of a village of this municipality. In the village of Valley is located the castle Schloss Valley, property of the Counts of Arco, which holds a Museum of Culture and Organs. Valley is also locally renown…Valley is a municipality in the district of Miesbach in Bavaria in Germany. The municipality of Valley holds, as of 2006, 2949 inhabitants. Valley is also the name of a village of this municipality. In the village of Valley is located the castle Schloss Valley, property of the Counts of Arco, which holds a Museum of Culture and Organs. Valley is also locally renowned for the brewery Gräfliche Brauerei Arco-Valley, which brews the Graf Arco beer. In 2002, the village played host to the 1st Extreme Ironing World Championships.