Maidhc O Casain
Na Bith Mo Riocht Tá!
Yessir - skills pertaining to mountainous areas in general will serve you well, but those specific areas would be more pertinent to the Barrier Wall mountains than to the Brazen Peaks.
However, I don't think from what I've read of the AP so far that there's any great benefit to be had from specific knowledge of the Brazen Peaks - wandering monsters and such will be very similar. It's only those things specific to the adventure path that would differ, and your knowledge/survival skills specific to the Brazen Peaks wouldn't be much help with that stuff.
It's also worth noting (though maybe not for this adventure) that there is actually some honest to Gods forest and swampland in central Katapesh. Clothing styles change there - more focused on keeping bugs and such out than on staying cool.
However, I don't think from what I've read of the AP so far that there's any great benefit to be had from specific knowledge of the Brazen Peaks - wandering monsters and such will be very similar. It's only those things specific to the adventure path that would differ, and your knowledge/survival skills specific to the Brazen Peaks wouldn't be much help with that stuff.
It's also worth noting (though maybe not for this adventure) that there is actually some honest to Gods forest and swampland in central Katapesh. Clothing styles change there - more focused on keeping bugs and such out than on staying cool.