Loch Lomond and Tara settlement are history now.
The old gate and throne hall and the temple as well as the long bridge over the lake are gone (apart from some ruins of the old gate and tower). Only old Lake Villa over Loch Lomond and Gleam Walk survived, being placed far enough from the Tara Mountain.
No one knows for sure what kind of cataclysm ended life of once thriving halls of Ice People.
But life goes on and new builds has sprung from Tara Mountain again. Ice People dug deeper in it this time and has conquered its top as well, creating a new home that they called Moria.
Around it new settlers found shelter too.
Check how Moria grows on ruins of older days here: