>>...we never >> did manage to find anything where that difference was more than about 4000 >> feet in a "range" only 10 miles wide.
> Which is why I brought up the Lyngs Alpen. Glacial troughs to either side
> can happen anywhere with ice cover at some time, and from the reactions to
> Fimbulwinter and Heort's liberation of Frozen Woman Ivarne I can only
> guess that at some point during the Darkness, there was glaciation in the
> region.
Yes, this makes a lot of sense, though I can't (yet) point at anywhere on the DP map and say "look, glaciation!" Mythically, we're probably looking at anywhere where Valind is said to have invaded.
> However, in the case of the Stormwalks, there are no carved-out valleys to
> either side of the range, but plateaus - not really flat, but rather
> uniform until the rugged foothills start.
Yes, hence the problem. We can't use glaciation, or being carved by rivers, or anything else very useful, there. Those mountains are the wrong shape for that.
> We have two different myths of origin for the Stormwalks,
> and ancillary myths of a protective wall against the Praxians
> One is the generic "sons of that mountain father in the deep - usually
> Lodril, Vestkarthan, Turos, etc - rose from the ground"....
> indicating volcanism or salt tectonics to produce individualpeaks.
Yep. Do you know of any Real World volcanic ranges on this tiny scale we can use for comparison?
> Those processes can produce children - lesser peaks, maybe foothills.
Which is what we have in the Stormwalks
> Then we have the Gloranthan equivalent of plate tectonics. In the case of
> the Storm Mountains, the consequences of Larnste's Footprint, which wasn't
> just a vertical stomp but also kicked up a folding line, the Storm Mountains.
>... there is a tectonic event to produce these mountains.
Which is also very nice. I can't say the Stormwalks as mapped look much like a fault line to me, which would certainly give us some extreme Steepness, but a fold line, yes. Fold with volcanic activity through the weakened area, perhaps? Would that give us anything useful?
> Last not least there is sedimentation for the creation of mountains - if
> we accept that the rivers flowed uphill for a significant time.
That's a good point: they did, until a specific event caused them to go downstream. I wonder what that would look like? It's probably fair to guess that we're not going to find a Real World model for that!
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