Upper Siljan, Sweden
Upper Siljan is the area north of Lake Siljan in the Swedish region Dalarna (usually "Dalecarlia" in English). "Dalarna" means "The valleys", and the landscape of Upper Siljan is dominated by valleys and rivers running between the many mountains, some over 800 m (2.600 ft.) high. The area is heavily forested, mainly with coniferous trees, and interspersed with wetlands and small lakes.
Linguistically, Upper Siljan is home to several related language varieties, strongly deviating from Standard Swedish. LACOLA research focuses on the varieties of Älvdalen and Orsa.