I've just come across this animation (over at reddit, thanks to Google) comparing the Sword Coast maps found in Storm King's Thunder and Sword Coast Adventurer's Guide.
(A few examples: Check the distance between Neverwinter and Helm's Hold, check where Raven Rock is, check where Mithrall Hall is, check where Beorunna's Well is, check where Citadel Felbarr is, etc.)
Is there any in-game, canonical reasoning behind the two maps being so different in so many places?
(Mind you, I do have SCAG, but I don't (yet) have SKT, so I can't check the latter myself.)