Massive doleritepillars have slid around 10–20 metres down the steep slope. On the slope and in the base of the cleft are large numbers of massive stone blocks. The view from the edge of the plateau stretches for miles around.
These types of hollows, caves and pillars can be found along the dolerite slopes in many places around Billingen. Doleriteis an igneous rock, which means that it was created from magma from beneath the Earth’s crust. Around 300 million yearsago, magma forced its way up through cracks in the surrounding layers of rock. When the hot magma cooled and solidified as doleriterock, it cracked, usually forming hexagonal pillars, but also forming much longer cracks. This is what gave rise to the distinctive appearance of the mountain slopes, with their pillars, clefts, hollows and caves. During the spring and autumn floods, yellow bog water from Blängsmossen cascades over the slope at the nearby Guldfallet waterfall.
Remember that this is hazardous terrain, so keep a close eye on children and keep dogs on a leash!