I found from my time in Norway that there are many distinct dialect differences that seem to be oriented around the landscape. I'd imagine that the mountainous terrain contributed to some amount of local isolation that fostered these changes in dialect.
Zeryxx t1_j3ske4x wrote
Reply to comment by gh333 in What, if at all, is the link between linguistic morphology and the topography of where a given language originated? by Djinn_and_juice
I found from my time in Norway that there are many distinct dialect differences that seem to be oriented around the landscape. I'd imagine that the mountainous terrain contributed to some amount of local isolation that fostered these changes in dialect.