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The Ephel Dúath, also known as the Mountains of Shadow or the Outer Fence, were a range of mountains making up Mordor’s western and southern borders.


These mountains met the Ash Mountains at the Black Gate, sealing Mordor from the outside. The Morgul Vale, where the city of Minas Morgul stood, was a large valley, opening into the Morgul Pass. The Pass of Cirith Ungol bore secret access through the Ephel Dúath via the dangerous tunnels of Shelob. In the northern reaches of the mountains on the east side lay the castle of Durthang, west of Udûn. The river Poros flowed down out of the mountains to the Anduin, as did the Morgulduin, and another unnamed tributary flowed into the Sea of Núrnen.[1]


Ephel Dúath is Sindarin for 'Outer fences of dark shadow'.


Foreign Language Translated name
Amharic ዐፕሀል ዹኣጥ
Arabic جبال الظل
Armenian Եպհել Դւատհ ?
Belarusian Cyrillic Епhел Дуатh
Bengali এফেল দুঅথ্
Bulgarian Cyrillic Епхел Дуатх
Catalan Èphel Duath
Chinese (Hong Kong) 伊菲爾杜斯 A.K.A. 黯影山脈
Danish Skyggebjergene
Georgian ეფელ დუათი
Greek Εφελ Ντουαθ
Gujarati એપેલ ડુથ
Hebrew אפל דואת
Hindi एफेल दुअथ्
Hungarian Árnyék-hegység A.K.A. Homály Kerítése
Japanese エフェル・ドゥーアス
Kannada ಎಫೆಲ್ ಡುವಾತ್
Kazakh Епһел Дұат (Cyrillic) Ephel Duat (Latin)
Kyrgyz Cyrillic Эпhэл Дуат
Macedonian Cyrillic Епхел Дуат
Marathi एपेल दुआथ
Mongolian Cyrillic Эпhэл Дуат
Nepalese एफेल दुअथ्
Pashto ېپهېل ضواته
Persian هپههل دواته
Russian Эфель Дуат
Sanskrit एफेल् डुअथ्
Serbian Епхел Дуат (Cyrillic) Ephel Duat (Latin)
Sinhalese ඒඵෙල් ඩුඅථ්
Tajik Cyrillic Епҳел Дуат
Tamil ஏப்ஹெல் டுஅத்ஹ்
Telugu ఏఫెల డుఅథ్
Thai เอเฟลดูอัธ
Ukrainian Cyrillic Ефель-Дуат
Urdu ایپہال دواٹہ
Uzbek Епҳел Дуат (Cyrillic) Ephel Duat (Latin)
Yiddish ײפּהעל דואַטה

Mountain Ranges of Arda

Ash Mountains | Echoriath | Ephel Dúath | Ered Gorgoroth | Blue Mountains | Ered Lómin | Grey Mountains | Ered Wethrin | Iron Hills | Iron Mountains | Misty Mountains | Mountains of Angmar | Mountains of Mirkwood | Mountains of Mithrim | Orocarni | Pelóri | Wall of the Sun | White Mountains | Yellow Mountains


  1. Unfinished Tales, "The West of Middle-earth at the End of the Third Age" (map)