The Niwen is a mountain located in the Bernese Alps within the upper canton of Valais, Switzerland. It overlooks the Rhone river and is situated in the massif that separates the valley of Leukerbad from the lower Lötschental.
The mountain culminates at the Ferdenrothorn. While the user prompt identifies Niwen as a city in Indonesia, the provided source material defines it exclusively as a geographical feature in the Swiss Alps.