Hrafntinnusker is a mountain in the Icelandic Highland a few hours hike from Landmannalaugar. It is a volcano that most geologists assume is not going to erupt anytime soon, though. The mountain takes its name from the black glass rocks, obsidian, formed when a rhyolite flowing magma cools extremely fast in an eruption. The Obsidian is a fascinating geological phenomenon. Such rocks are scattered around the whole are at Hrafntinnusker. Although a mountain, the second half of its name is Skerry, but not a mountain, and this is believed to be in accordance with naming traditions in the eastern parts of the lowland around Syðri Fjallabak, in Skaftafell.
An exotic place with many unusual ingredients
Hrafntinnusker is a unique place, even in the diverse landscape flora in Iceland. It is a mountain with a small glacier on top. A relatively large active geothermal area with much of the activity under the ice. The ground is constantly delivering smoke while you visit the place. It is located in a very remote part of Iceland. It has ice caves because of the heat under the glacier and it offers a grand view because of the height of the mountain. As fascinating as the ice caves are they are also very dangerous as no one really knows how and when parts fall from the ceiling or inside the caves. It is recommended that people do to enter the caves as vast and lethal parts can fall from the walls and ceiling of the caves.
Access only available for hikers and well equipped 4X4 vehicles
There are basically two ways to visit Hrafntinnusker. One is the hiking trail from Landmannalaugar on the east side of the mountain, and the other is the 4X4 trail from the west side. Although a fascinating place not many visitors get an opportunity to come here. Most of the people hiking the Landmannalaugar hiking trail only see the east side, and might stay overnight in the hut located there, but miss the west side. The west side is very interesting and requires a well equipped 4X4 vehicle as the road is quite difficult with many rivers to cross.
Below is the location of Hrafntinnusker on the map of Iceland