Sunset over the beautiful Trondheimsfjorden PanoramaA very beautiful sunset over Trondheimfjord taken from Ladestien in Trondheim. The Trondheim Fjord or Trondheimsfjorden (pronounced [trn(h)msfju]), an inlet of the Norwegian Sea, is Norway's third longest fjord at 130 kilometres (81 mi) long. It is located in the west central part of the country in Trndelag county, and it stretches from the municipality of rland in the west to the municipality of Steinkjer in the north, passing the city of Trondheim