Anyone know the names of the mountain ranges that separate Whiterun and Morthal? Same goes for the mountains north-west of Windhelm. I've looked on all the maps and they're not named on any of them. Or maybe they come under one name?

Hmm, maybe they are too small to be classified as a mountain range.

I think the mountain near Windhelm is named Mount Anthor. Don't think the mountains near Whiterun/Morthal have a name. Probably Cold Rock (Cold Rock Pass, though it probably just describes the pass) and Stonehills?

The one just west of the statue of Azura is Mount Anthor no idea about the rest.

http://www.uesp.net/wiki/Skyrim:Mount_Anthor