Nashkel already has mines for a reason. Thus you could just have some random DM event where someone finds a large enough silver veins for example to set up a mine. Then you could have few adventurers solve some trouble, and then you could have a silver caravan running from Nashkel to Baldur's Gate to be shipped from the docks to further down to Amn.DM Hera wrote:My thought is
BG to Beregost. BG to Nashkel actually.
and Bergorst to BG. Nashkel to BG.
After all, you could spend months slowly moving it through the Cloudpeaks and risk it being claimed by Giants, or delayed further by a sudden avalanche cutting the only path through. Thus, it could make a lot more financial sense to only spend weeks moving the silver northwards to Baldur's Gate where it would shipped to south to Amn.
Waterways have always been the lifeblood of trade. You can travel as fast as the winds carry you, and most importantly you do not have to feed working animals or worry about a wheel or axle breaking - and you just have to look at modern maps to see how almost all of our old cities were formed by either shore or riverbanks, if not both. Heck, I am currently living in some old port city at the mouth of a river.
Oh and, it could give some 'impromptu' events for the less honorable or noble adventurers. They could rob a silver caravan. The dwarves could perhaps lend their hand and turn piles of rocks into bars of silver for some fee given to their guild. The elves might want to get some of that silver to craft some elven trinkets and rings.
You know... If you want to promote RP, just have a silver caravan running up and down, and let people hitch a ride on it. Every one benefits. (And you do not even need to have these silver mines as a visitable map, just use some DM areas for the events and add the caravans with few workers and barrels/crates.)