D&D Notable Location - Mountain

A location that is known locally or further afield, as a landmark, place of history, magical danger or otherwise noteworthy.
Mountains encounters bring visions of snow-topped crags, mighty waterfalls, verdant valleys and cloud castles. They are the home of proud highland tribes, avian predators and mighty giants.

terrain:

Fish and other sea creatures can be seen swimming inside a glacier of blue ice. As creatures approach, an ocean scent grows stronger.
A sentient clearing. It is at the top of a hill. It has a programmed illusion involving a raven and a red dragon. was the site of a famous conflict.
Bronzeweb Rock is a colorful island. It was a place of executions.
A dusty canyon. It has a holy day that is held every few years. It is protected by a druid. is from another realm.
An overgrown ruins. It is at a river crossing. was for a ritual by an elven titan a few years ago.
A floating island. It is at a river crossing. It has a programmed illusion. It is associated with a magical ghost.
A ghostly ice statue. It has a great ritual that is held every few years.
The Nesting Towers. Amongst the ruins of a monastery are many animal bones. At the top of a few standing towers are griffon nests.
A sinister meadow. It is attractive to ghosts and spirits. It is associated with a magical priest. was where a portal was built.
The Moss Glen is a pretty clearing. It is in a field. It is protected by a swarm. has the burial site of the emerald demigod.