In the eastern parts of Bamble, the story is quite different. Here you will find nicely layered sedimentary rocks, which mostly consist of limestone, sandstone and slate. These rocks were formed when Norway was a part of a tropical sea, full of life, situated somewhere close to the equator approximately 500 million years ago.
You cross the boundary between these two different “worlds” as you head into the monumental limestone cliff “Høgenhei”, and in the immediate vicinity to this, you will find one of the geopark’s sites; Rognstranda. Here you can walk on the smooth surface of the old basement rock and at the same time study the limestone cliff on the other side of the bay. If you want to study the limestone in detail, you can do that in Steinvika near Langesund. This geopark site is full of fossils which gives an insight into life in the tropical sea that once flooded the area.
The origin of the rocks isn’t the only interesting stories to be told when it comes to the geology of Bamble, the area also has a mining history that can be traced back to the 16th century. Here they extracted large amounts of metals and industrial minerals. Examples are quartz, feldspar, apatite, zinc, lead, iron and nickel. The most famous mines are Tråk, Ødegårdens verk and Bamble nickel mines, all within the area of the old basement rocks.
Great hiking area near Rognstranda in Bamble. Beautiful forests and flora.
The landscape with the escarpments, "flauane" in Norwegian, is characteristic of the…
The Olav church ruin (Skeidi church) are the ruins of a stone church built before 1150 in…
Bamble Church is a large wooden structure dedicated in 1845.
Langesund customs warehouse as it stands today was erected in 1869.
Tollpakkboden is a log-built warehouse, the main part of which dates from the early 1700s.
Workshop and gallery in Langesund.
The old guardhouse is now a customs museum, with artefacts found there from long ago.
Welcome to the geosite in Steinvika
Tangen Fort lies at the outermost point on Langesundtangen, south of the town of…
Gallery Grindbakken is a small and exciting gallery by the water's edge at Stathelle.
Welcome to a unique porcelain experience in Porsgrunn!
As the first geopark in Scandinavia, Gea Norvegica became member of the Global Geoparks…
Learn more about the natural history of our planet.