Only skiied at Blue Mtn 1 or 2 days during the holidays. I ski just about every day. How to count? It's a pretty good estimate - BM has vert of 1082, however, some runs (Main St) might only be 750 vert. Come on - it's easy to do the math. Camelback is about 800, JF about 600, Killington - depends on the run.