Originally posted by BadDudesaBomBa:

I can't explore the mountains because I freeze to death. I need wolf armor to not freeze, but I can't get to the silver because it's at the top of the mountain which I can't climb because I freeze. I know there's a drink I could make, but I haven't found a beehive at all so far. I feel like they've been made more scarce.
Anyway, I think the biggest issue here is that the Elder's spawning point in my world has spawned in such a weird place that it's surrounded, or at least bordered by the plains biome, so I just assumed that he has to be summoned in the biome now. That's my mistake. I'm gonna go and try to find bees.

You can explore the mountains- one of the things you have access to after Bonemass is frost resistance meads. Make some, take some with you and go mountaineering. :) NB- leave some at home too in case you die and need to recover your gear. Also, as long as its not storming, you can just take wood and stone with you and build a chain of campfires up the mountain to prevent freezing. (If you choose that method you should take a portal kit with you and practice getting it up fast in case the weather turns and puts your campfire out. Or take a bonfire kit with you as well)