The broad and long Trondheimsfjord is at the center of this county, although the coastal areas stretch somewhat further north. The mountain ranges Dovrefjell and Trollheimen are located in the south, while the Fosen peninsula is located north of the fjord. Several of the best salmon rivers in Europe are located in the county, the largest and most famous being Gaula and Orkla. Dovrefjell-Sunndalsfjella National Park, Forollhogna National Park, Skarvan og Roltdalen National Park and Femundsmarka National Park are located, or partly located, in the county
Oppdal is bordered by one municipality in Sør-Trøndelag (Rennebu to the northeast), three municipalities in Møre og Romsdal county (Surnadal on the north and Rindal and Sunndal to the west),...