Trollaskagi (Troll Peninsula) is an area of spectaculra natural beauty where the beauty of the mountains and the fjords is awe inspiring. The Northern light shine during the wintertime and the hills are filled with juicy berries during the fall. Not to mention the spring and the summertime where the days strets into the night and the light seems never ending.
Troll peninsula (Tröllaskagi) is one of the most extraordinary mountain scenarios in Iceland. It lies in North Iceland between the fjord of Skagafjörður and the fjord of Eyjafjorður. The peninsula is mountainous with several peaks reaching over 1200m above sea level, some over 1400m, the tallest one is Kerling (1538m). It is the part of Iceland with the highest elevation outside the central highlands.
The peninsula is cut by several deep valleys that were carved by glaciers during the glacial periods of the last Ice age and later by the rivers that now flow down those valleys. A few permanent glacier ice caps still exist in central Tröllaskagi but they are all rather small.
The nature of the Troll Peninsula is powerful and the mountainous landscape adds an adventures atmosphere. The peaceful mountains, sound of the wave, clear winter night sky, northern light, soft breeze of the spring, blue berry hills during the fall. Everything that money can´t buy, leaving a pure joy at heart. Magical.
The bedrock under Dalvíkurbyggð comprises mostly ancient volcanic strata of tholeiite (basalt), which form an enormously thick pile of rock strata. Between the basalt strata are layers of sedimentary rock formed by soil deposited between eruptions, and also in some cases sand and gravel layers deposited by rivers and lakes. The rock pile slopes slightly to the south. It dates back 10-12 million years. In many places dikes stand almost at right-angels to the rock strata; these were feeder conduits to ancient volcanoes, in which magma solidified. A large, thick dike protrudes through the mountain Stóllinn, which stands in the middle of the vally, separating Svarfaðardalur from Skíðadalur.
Hálfdánarhurð (Hálfdán´s Door) on Ólafsfjarðarmúli is also a dike. After volcanic activity ceased in the region about ten million years ago, the forces of wind and water eroded Eyjafjöður and its valleys into the rock pile, after which glacial erosion carved out the landscape we see today. Curved end moraines, deposited by glasiers at the end of the last Ice Age, are striking features of the landscape; one of the most beautiful is Hólsrípill, north of Dalvík. The landscape also shows signs of ancient landslides in screes or talus slopes, for instantce at Upslinn above Dalvík, the hillocks below Hofsskál in Svarfðardalur and Hvarfið at the entrance to Skíðadalur.