Mongefossen, Towering waterfall in Rauma Municipality, Norway.
Mongefossen is a waterfall in Rauma Municipality, Norway, that falls in a single vertical drop of 773 meters down a bare rock face. It measures about 23 meters wide and is visible from a considerable distance across the valley.
The waterfall has long been part of the Rauma valley landscape, but its flow changed in 1977 when the Grytten hydroelectric project was built. The Mongeelva river was redirected for power generation, which greatly reduced the amount of water reaching the falls.
The name Mongefossen comes from the Mongeelva river that feeds it. Visitors on the Rauma Line train get a direct view of the falls as the tracks pass right at the base of the cliff.
The waterfall is best viewed from the area along the Rauma Line railway, between the villages of Flatmark and Marstein. Visiting after heavy rain or during snowmelt gives you a much fuller flow than in dry periods.
The water feeding the falls comes from five mountain lakes and two small glaciers above the valley. When the reservoirs overflow, the extra water spills down the cliff, so the fall can look very different from one season to the next.
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