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Arnold Coster

Dutch mountaineer

Wikipedia contributorsAdapted for Fathomly · View authors
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Source updated September 4, 2026
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Arnold Coster (born Arnold Schiedam, 1976, Netherlands) is a Dutch mountaineer.

Educated as a mechanical engineer, he became intensely involved with climbing at a young age when he started climbing in the Alps. He moved to Nepal in 2003 to follow his passion of mountaineering.

Coster has summited 5 of the 14 peaks above 8000m. In 2010 he became the first person from the Netherlands to summit Makalu (8481 m).

01Expeditions led

YearPeakCountrySeasonRoute
2004Everest Tibet 8848mChinaSpringNorth col Route
2004Cho Oyu 8201mChinaAutumnNorth-West ridge
2005Everest Nepal 8848mNepalSpringSouth col route
2005Cho Oyu 8201mChinaAutumnNorth-West ridge
2005Everest Nepal 8848mNepalSpringSouth col route
2005Mt Kenya, Neillion 5188mKenyaWinterNeillion SW Face
2006Kilimanjaro 5895mTanzaniaWinterUmbwe Route
2006Shishapangma 8027mChinaAutumnNorth ridge
2007Everest Nepal 8848mNepalSpringNorth col Route
2007Mustagh Ata 7541mChinaSummerWest face "Tashi" route
2007Cho Oyu 8201mChinaAutumnNorth-West ridge
2008Everest Nepal 8848mNepalSpringSouth col route
2008Khan Tengri 7010mKyrgyzstanSummerSouth Route
2009Everest Nepal 8848mNepalSpringNorth col route
2009Mustagh Ata 7541mChinaSummerWest face "Tashi" route
2009Cho Oyu 8201mChinaAutumnNorth-West ridge
2009Baruntse 7244mNepalAutumnSouth Ridge
2010Makalu 8481mNepalSpringMakalu La North Face
2011Everest Tibet 8848mChinaSpringNorth col Route
2011Mustagh Ata 7541mChinaSummerWest face "Tashi" route
2011Cho Oyu 8201mChinaAutumnNorth-West ridge
2011Baruntse 7244mNepalAutumnSouth Ridge
2012Mt Kenya, Neillion 5188mKenyaWinterNeillion SW Face
2012Kilimanjaro 5895mTanzaniaSummerRongai Route
2012Lothse 8586mNepalSpringWest Face Couloir
2012Mustagh Ata 7541mChinaSummerWest face "Tashi" route
2012Dhaulagiri 8167mNepalAutumnNorth East Ridge
2012Aconcagua 6959mArgentinaSummerNorth East Route
2012Ama Dablam 6856mNepalAutumnSouth West Ridge
2013Everest Tibet 8848mChinaSpringNorth col Route
2013Gasherbrum I 8068mPakistanSummerJapanese Couloir
2013Gasherbrum II 8035mPakistanSummerSouth West Ridge
2014Kilimanjaro 5895mTanzaniaWinterLemosho Route
2014Everest South 8848mNepalSpringSouth Col Route
2014Manaslu 8156mNepalAutumnNorth East Face
2015Everest South 8848mNepalSpringSouth Col Route
2015Stok Kangri 6153mIndiaSummerNormal Route
2015Kang Yatse II 6200MIndiaSummerNW ridge
2015Everest South 8848mNepalSpringSouth Col Route
2015Manaslu 8156mNepalAutumnNorth East Face
2015Ama Dablam 6856mNepalAutumnSouth West Ridge
2016 Aconcagua Argentina Summer North East Route
2016 Everest 8848m Nepal Spring South Col Route
2016 Manaslu 8163m Nepal Autumn NE- Ridge
2016 Amadablam 6812m Nepal Autumn SW-Ridge
2017 Aconcagua 6962m Argentina Summer Normal
2017 Everest 8848m China Spring NNE- Ridge
2017 Manaslu 8163 Nepal Autumn NE-Ridge
2017 Amadablam 6812m Nepal Autumn SW-Ridge
2017 Cholaste 6640m Nepal Autumn SW-Ridge
2018 Carstensz Pyramid 4884m Indonesia January Normal
2018 Everest 8848m China Spring NNE-Ridge
2018 Manaslu 8163 Nepal Autumn NE-Ridge
2018 Amadablam 6812m Nepal Autumn SW-Ridge
Watch videos about Arnold CosterExplainers and documentaries on YouTube (opens in a new tab)

Sources and credits

This article is adapted from the Wikipedia article “Arnold Coster”, written by its contributors and licensed under CC BY-SA 4.0. Fathomly has changed the layout, removed citation markers, navigation and maintenance notices, and adjusted punctuation. This adapted version is shared under the same license. For references, see the original article.

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