Azalnubizar
Explorer
Mountains are in general very, very, very dangerous terrain in fantasy worlds.
My low level group doesn't dare to go near mountains right now and they certainly know why...
I think you should put in a few encounters, that makes it clear to them, that they are passing very, very dangerous territory.
What I like is putting them under heavy conditions: Read the entries for thunderstorms, heavy snow, clouds (=fog), sleet etc in the DMG and use them. Make them chance upon some really low level opponents (f.e. a few goblins) during a really hard thunderstorm - the goblins are prepared for the storm, they live here, the adventurers arent't...
Make them come upon a peaceful valley with many deers, cows or bisons in it, that can't get out because a stones are blocking the entrance to the valley. A huge dragon actually has his snack here and imprisoned them - they should be very, very carefull around here... (if there are copper dragons, why not red dragons as well?)
They might encounter Stone giants. They need to get past the Stone giants without getting noticed...
Frost giants are also common in mountains...
Sometimes you chance upon very small dragons as well - they might even have to fight a very young one (I don't know the levels of your party...but a very young white one...)
Put in some standard encounters as well - a few goblins here - an ogre there - maybe they even meet a giant eagle?
I would really put much thought to the weather, so. Hopefully they have a druid or ranger with them (knowledge nature can predict weather) because getting caught by a snowstorm while climbing a mountain can be more dangerous than a horde of ogres...
Azal
My low level group doesn't dare to go near mountains right now and they certainly know why...
I think you should put in a few encounters, that makes it clear to them, that they are passing very, very dangerous territory.
What I like is putting them under heavy conditions: Read the entries for thunderstorms, heavy snow, clouds (=fog), sleet etc in the DMG and use them. Make them chance upon some really low level opponents (f.e. a few goblins) during a really hard thunderstorm - the goblins are prepared for the storm, they live here, the adventurers arent't...
Make them come upon a peaceful valley with many deers, cows or bisons in it, that can't get out because a stones are blocking the entrance to the valley. A huge dragon actually has his snack here and imprisoned them - they should be very, very carefull around here... (if there are copper dragons, why not red dragons as well?)
They might encounter Stone giants. They need to get past the Stone giants without getting noticed...
Frost giants are also common in mountains...
Sometimes you chance upon very small dragons as well - they might even have to fight a very young one (I don't know the levels of your party...but a very young white one...)
Put in some standard encounters as well - a few goblins here - an ogre there - maybe they even meet a giant eagle?
I would really put much thought to the weather, so. Hopefully they have a druid or ranger with them (knowledge nature can predict weather) because getting caught by a snowstorm while climbing a mountain can be more dangerous than a horde of ogres...
Azal