Lovely detailed map. That is interesting. And many parts of that area would have a lot of natural protection from danger of the Silent World because of their terrain, isolation and weather. Plus there are those tiny cats - kodkod, guna, something like that? Which can, if I remember correctly, live mostly on moths when their small mammal prey can’t be had. I imagine that they would be as useful as any cat around trolls and beasts, however tiny they may be.
And I am delighted that you have druids there, because Argentina still has them in real life. About fifty years ago I met a family from Argentina who were resettling to Australia. I had been asked to help them settle in, which I cheerfully did. Nowadays they live in outback New South Wales, where the old man of the family and his son build harps and teach music. They have a small farm and a good life. I taught the kids Australian bushcraft, they taught me some useful old songs and stories.
They were descendants of a family with druidic traditions who had come to Argentina back in the 1800s when whole villages of Welsh silver miners moved to Argentina, the miners bringing their families and their traditions in much the same way as the Cornish copper miners did here in South Australia. Which is why we still have Cornish druidic and other cultural traditions here in SA (Lowender Kernewek happens 17-23 May 2021 in the Copper Coast towns, if anyone is interested.). Anyway, the language they have is a bit archaic, but still Welsh with Spanish loanwords. The settlement that family came from was called Arianín, which like Argentina means ‘place of silver’.
Pardon the real-life interpolation, but I thought it might give you some references for worldbuilding.