Disclaimer: Both the Teleri and Middle-earth belong to J.R.R. Tolkien. I only own my computer and my imagination.
The Chronicles of the Teleri
Eriador
Although in later ages the hidden valley would become an important refuge for the elves left in Middle-earth, we the Teleri spent only a few weeks there, recovering from our ordeal in the Hithaeglir and gathering our strength for the next stage of our westward journey.
As ever, though, we were reluctant to leave a place of such peace and beauty. The music of the waterfalls was unlike anything we had heard before, but much as it enchanted us, for once that wonder could not distract us from our goal, for our glimpse of the still far distant sea was still fresh in our minds, drawing us onward.
So we set out to continue our journey, and although we were at first disheartened by the bleakness of the land we travelled through, the wild, rocky moors soon gave way to pleasanter country, full of trees and grassland. Away to the south of us was the great mass of a forest, but for once we were not tempted to go to it. Only once did it draw near to our path, but even then it was only a spur of trees jutting out from the main body of the forest, and it was still too far away to distract us from our journey.
The land we walked in was one of rolling hills and small stands of woodland, soothing and comforting us even as we passed through it and on to a new mountain range that loomed again in the west.
All too soon we left the green country and were once more in barren mountain foothills. However, unlike the Hithaeglir, these new mountains seemed not to tower over us, menacing us with their height. Indeed, even close to they seemed shrouded in a blue haze, making them indistinct to our eyes, whereas the Towers of Mist had been all threatening heights and jagged peaks.
So we named these mountains Ered Luin, and although they presented us with another obstacle in our journey, we did not fear them as we had the Hithaeglir.
And as we climbed further into the foothills, we perceived we were right not to be afraid of the Blue Mountains. For although their peaks towered into the sky, there were many low passes and valleys between them, making our passage through them far easier than our trials in the Hithaeglir.
And so we passed out of Eriador and into a new land, one that was to be a home for us for many long years, though at that time we knew it not.