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Location of Aelin-uial
Background Information
Type Marsh
Location Meeting of Aros and Sirion
Realms Doriath
Ruler Thingol
Other Information
Summary Known for being under the power of Ulmo and an enchanted place, very difficult to traverse and for being where both Turgon and Finrod received their dreams from Ulmo.
Other names Meres of Twilight; Umboth Muilin (Pools of Twilight)
Inhabitants Sindar
Spoken Languages Sindarin
Lifespan YT - FA 587

Aelin-uial was a marshy confluence of the river Aros into Sirion, south of Doriath.[1][2]


The Aelin-uial was the maze of lakes and fens which formed where the river called Aros met Sirion, before it fell beneath the Andram. These were lands heavy with enchantment, both from the girdle of Melian guarding Doriath to the North, but also from the power of Ulmo that was very mighty in the waters of the river Sirion. The Aelin-uial was under the total control of the Sindarin kingdom of Doriath. The march wardens of Thingol had secret ferries among the reeds, so that they could cross between the Sirion's eastern and western banks unseen. At the southern end of the Aelin-Uial, the Sirion's waters collected together once more from the many paths they took through the Marshland and, at the place called the Falls of Sirion, fell a very loud waterfall down into the earth.[1]

It was here that Turgon and Finrod were given the idea of building their hidden fortress at Gondolin and Nargothrond. This idea was given to them by Ulmo, who put this idea into their heads while they were dreaming.[3]

As Beren Erchamion left Doriath, he passed through Aelin-uial and proceeded to the Falls of Sirion.[4]

In search for Túrin Turambar, Morwen and Nienor followed Mablung, who later brought them to the hidden ferries of the elves.[5] After the release of Húrin, he passed through the Aelin-auial and entered Doriath, where he met Elu Thingol and reutrned the Nauglamir.[6]

It was destroyed in the War of Wrath, which occurred at the end of the First Age.[7]


The name Aelin-uial is Sindarin which means "Twilight Meres" from the words aelin ("lake, pool") and uial ("twilight").[8]

Its earlier name was the Gnomish Hithliniath "Pools of Mist" which was later change to Umboth-miluin.[9]

Other NamesEdit

It is also called the "Meres of Twilight", "Twilight Meres", or "Twilit Meres".

Translations around the worldEdit

Foreign Language Translated name
Amharic ዓአሊን፡ኡኢኣል
Arabic إيلينءويال ?
Armenian Աելին-ւիալ
Belarusian Аелін-уіал
Bengali আএলিন্-উইঅল
Bulgarian Аелин-уиал
Dari اهلینءویال
Georgian აელინ-უიალ
Greek Αελιν-υιαλ
Gujarati આએલિન્-ઉઇઅલ
Hebrew אילינעויאל ?
Hindi आएलिन्-उइअल
Hungarian Félhomály-tavak
Kazakh Аелін-ұіал
Kurdish ئه‌لین-ویال ? (Arabic script) Aelin-áiál (Latinised)
Kyrgyz Аэлин-уиал
Macedonian Аелин-уиал
Mongolian Аелин-уиал
Nepali आएलिन्-उइअल
Pashto آېلین-ویال
Persian اهلینءویال ?
Russian Аэлин-уиал
Sanskrit आएलिन्-उइअल्
Serbian Аелин-уиал (Cyrillic) Aelin-uial (Latinised)
Sinhala ආඑලින්-උඉඅල්
Tajik Аелин-уиал
Tamil ஆஎலிந்-உஇஅல்
Telugu ఆఎలిన్-ఉఇఅల
Tigrinya ዓአሊን፡ኡኢኣል
Ukrainian Аелін-уіал
Uyghur ئەلىن-ۇىال
Uzbek Аелин-уиал (Cyrillic) Aelin-uial (Latinised)
Yiddish אַעלין-ויאַל ?


  1. 1.0 1.1 The Silmarillion, Quenta Silmarillion, Chapter XIV: "Of Beleriand and its Realms"
  2. The Atlas of Middle-earth, The First Age, The Elder Days, "Beleriand and the Lands to the North"
  3. The Silmarillion, Quenta Silmarillion, Chapter XIII: "Of the Return of the Noldor"
  4. The Silmarillion, Quenta Silmarillion, Chapter XIX: "Of Beren and Lúthien"
  5. The Silmarillion, Quenta Silmarillion, Chapter XXI: "Of Túrin Turambar"
  6. The Silmarillion, Quenta Silmarillion, Chapter XXII: "Of the Ruin of Doriath"
  7. The Silmarillion, Quenta Silmarillion, Chapter XXIV: "Of the Voyage of Eärendil and the War of Wrath"
  8. The Silmarillion, Appendix: Elements in Quenya and Sindarin names
  9. The History of Middle-earth, Vol. 11: The War of the Jewels, Part Two: The Later Quenta Silmarillion, XI: "Of Beleriand its Realms"

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