'The Green Mound' where the Two Trees of Valinor stood and grew until destroyed by Ungoliant and Morgoth. The mound was also known by the name Ezellohar.

Corollairë was before the western gate of Valmar. Yavanna hallowed the mound and sat upon it singing a song of power. Nienna sat also upon the mound in silence and her tears fell upon the ground. In time from Corollairë grew the saplings which would grow into Laurelin and Telperion.
Encyclopedia entry originally written by Fëathoron