Bitihorn (local pronunciation: ) is a mountain on the border of Vang Municipality and Øystre Slidre Municipality in Innlandet county, Norway. The tall mountain is located in the Jotunheimen mountains about northwest of the village of Beitostølen. The mountain is surrounded by several other notable mountains including Rasletind and Raslet to the north, Gråhøi and Kvernhøi to the northeast, and Skaget to the east. It is situated on the west side of Norwegian County Road 51, and because of its location, it is a landmark for tourists following that popular driving route. Geology The mountain is steep towards south and east, and there is a subtle change in the rock layers between the sparagmite foundation and the summit which consists of the much harder gabbro rock. The summit is one of the southernmost outcrops of gabbro in the vicinity, and Bitihorn is therefore significantly higher than its neighbors to the south and east. Underneath the sparagmite layer, lies a layer of extremely nutritious slate, called phyllite. That layer and its subsequent plant cover is the reason for the many mountain pastures in the area. It is also quite easy to see how the different rock layers have been pushed upon each other from a north-northwest direction, so that the northern slope is quite easy, whereas the southern (and in this case the eastern) is extremely steep. This can be seen in all the neighboring peaks, like Skyrifjell, Heklefjell and Olefjell. History In 1811, the peak was climbed for the first time in recorded history by the botanist Christen Smith. Except for the expedition by Jens Esmark in 1798 this biological expedition was the first mountaineering effort in Norway. Smith also climbed the much higher Besshø, further north. Tourism soared in the late 19th century after the erection of Raudfjordheim lodge and later the hotels Bygdin and Bygdisheim in the vicinity. The extraordinary scenery attracted tourists from far away, among them queen Wilhelmine of the Netherlands, who stayed at Bygdisheim. In 1905 the boat route on lake Bygdin (1060 m above sea level - different elevations can be found since the lake is dammed), was opened. The boat, which is aptly named Bitihorn, still traffics the route from Bygdin Hotel to Eidsbugarden hotel in the western end for about ten weeks each summer. This was in the beginning of the 20th century a remarkable feat since there were no roads leading