Mount Helgehornet lies in a very interesting area in terms of its geology. The mountain is literally surrounded by olivine deposits. Next to the car park in Sundalen, you will find Peridotplassen (Eng. The Peridot Square), an area where you can search for and pick up your own peridot gemstones. Peridot is pure crystallised olivine formed under immense pressure in the proximity of the Earth’s mantle and later pressed up to the surface. You can find beautiful samples of this gemstone at Peridotplassen. Peridotplassen used to be part of the trail network Vanylvsturen that was set up in 2009.
http://www.vanylven.kommune.no/getfile.aspx/document/epcx_id/561/epdd_id/799
http://www.vanylven.kommune.no/modules/article.aspx?ObjectType=Article&Article.ID=1394&Category.ID=973
You can also find these amazing peridot crystals at Norsk Olivinsenter (Eng. Norwegian Olivine Centre) in Åheim.
http://norskolivinsenter.no
http://www.visitalesund-geiranger.com/no/AKTIVITETER/familie/?TLp=399220
Turen opp på Helgehornet er ein lett tur. The trail destination offers a wonderful view in all directions. The view of Lake Helgehornsvatnet is especially remarkable.
This hike can be combined with a loop trail around Lake Helgehornsvatnet which is notable for the unique geological formations in the area around the lake. In the eastern end of the lake, you will find a deposit of the beautiful garnet peridotite. This area has a protected status today.Please see Vanylven Municipality – a trail to Helgehornsvatnet.