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Audnedal

Flottorp Molybdenum Mines

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Flottorp Molybdenum Mines

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  • Location: Audnedal, West Agder, Norway

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    May 13, 2026

    Hiking

    The molybdenum mineralizations of Flottorp were discovered in 1910. A processing plant was already installed in 1911, and by 1919, a total of approx. 37 tons of concentrate with a MoS₂ content of 70% had been produced. The

    deposit was mined from 1916 to 1919 by the company Undalens Molybdengruver. A maximum of 150 to 250 people were employed there.
    After the First World War, the demand for molybdenum decreased, and the mine was closed in 1920.


    In 1941/42, the occurrence was investigated and approx. 1600 m were drilled with diamond cores. It was concluded that the deposit was uneconomical.
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    Nearby routes

    Best routes near Flottorp Molybdenum Mines

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    4.8

    (6)

    21

    hikers

    #1.

    Ørnemyr Mountain – Gullsmedberget loop from Øvre Flottorp

    6.55km

    02:04

    250m

    250m

    Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.

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    Moderate

    Details

    Informations

    Elevation 470 m

    Weather

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    Wednesday 16 September

    13°C

    5°C

    98 %

    Additional weather tips

    Max wind speed: 14.0 km/h

    Location: Audnedal, West Agder, Norway

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