Ariel Mountain Range.
The mountains were white in bright years, and in the frigid years- even more so.
A party of eight were travelling through the valleys, riding Grizzled Yaks- white fur coated magical bulls. During the warm years, the citizens farmed yarn from the beasts and in the cold years, they used them as steeds.
Every single one of the riders were wearing white fur coats and a warm head covering. It snowed heavily while frigid winds raged through the valleys, sending chills to all warm creatures.
At the extreme back of the party we're two hooded figures. Their hoods covered everything, only exposing a bit of their mouths and chin.