How big is the Grey Towers mountain range?

From: Raymond E. Feist
Date: Sun, 28 Apr 1996

I've always thought of the Grey Towers as being a local mountain range, with the highest peaks in the 10,000 foot range, max. But I've also posited they're a relatively new range geologically speaking, with major upthrust, so there are continuous barriers, and the two major passes, norther and southern, both have summets in the 7,000 foot range, which is why they get snowed in during the summer, when the snowline drops to around 4-5,000 feet.