The terrain conditions were calm winds with snow falling constantly on some regions of the planet. There were very large mountains that had huge caverns in them, such as the one where the city of Frotton was built.
Frotton, a city in the depths of mountains, had homes that were made of crystal and ice with minor metals for some. Frotton was claimed lost long ago by the Empire when they searched for it. No one knows who built the city. It could have been the Tolo or it could have been the Tieshena.