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The Gelion was a river in East Beleriand.


The Gelion had two sources; the Little Gelion flowing from the hill of Himring and the Greater Gelion, flowing from the Blue Mountains. It then passed south, dividing Estolad to the west from Thargelion to the east, then was crossed by the old Dwarf-Road at Sarn Athrad. Finally, it passed into Ossiriand where it was fed by the rivers Ascar, Thalos, Legolin, Brilthor, Duilwen, and Adurant, which rose in the Blue Mountains.

Gelion then passed by Taur-im-Duinath and emptied into the Great Sea Belegaer and according to Karen Wynn Fonstad's The Atlas of Middle-earth, it was hundreds of miles in length and longer then the Sirion but not as deep and wide.[1][2][3]


Gelion was a Sindarin word[3], of unspecified meaning.

Behind the scenes

Late in his life, Tolkien apparently decided to change the name "Gelion". The possible replacements he recorded were "Gelduin", "Gevilon", "Gevelon", "Duin Daer", and "Duin Dhaer".[4]


Foreign Language Translated name
Amharic ጌልዮን
Arabic غليون
Armenian Գելիոն
Belarusian Cyrillic Геліон ?
Bengali গেলিওন
Bulgarian Cyrillic Гелион
Chinese (Hong Kong) 蓋林河
Danish Gelionfloden
Georgian გელიონი
Greek Γέλιον
Gujarati ગેલીઅન
Hebrew גליון
Hindi जेलियन
Japanese ゲリオン
Kannada ಜೆಲಿಯನ್
Kazakh Геліон (Cyrillic) Gelion (Latin)
Korean 겔리 온
Kyrgyz Cyrillic Гэлион
Macedonian Cyrillic Гелион
Marathi जेलियन
Mongolian Cyrillic Гелион
Nepalese जेलियन
Persian گلیون
Russian Гелион
Sanskrit ङेलिओन्
Serbian Гелион (Cyrillic) Gelion (Latin)
Sinhalese ගෙලියන්
Tajik Cyrillic Гелион
Tamil கேலின்
Telugu గెలియన్
Ukrainian Cyrillic Ґеліон
Urdu گالیون
Uzbek Гелион (Cyrillic) Gelion (Latin)
Yiddish געליאָן

Rivers of Beleriand

Adurant | Aros | Ascar | Brilthor | Brithon | Celebros | Celon | Dry River | Duilwen | Esgalduin | Gelion | Ginglith | Glithui | Greater Gelion | Legolin | Little Gelion | Malduin | Mindeb | Narog | Nenning | Ringwil | Sirion | Taeglin