Dry River

   The river that once flowed out under the Encircling Mountains (from the primeval lake where was afterwards Tumladen) to join Sirion; forming the entrance to the plain of Gondolin.

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   The entranceway to Turgon's realm.

   The name given to the dry bed of what had once been a tributary of the River Sirion rising in the Encircling Mountains. At the northern end of its gully lay the entrance to the Hidden City of Gondolin.