I don't know if this will help, but I found three routes on ridewithgps.com for the 2012 version of this ride. The elevation gain varies for them, from 3200 to 3750 feet. This one is in the middle, with 3350 feet of climbing. (I assume the differences are due to Garmin uploads or something like that, though I haven't looked closely enough to see if all three routes are exactly identical.)

http://ridewithgps.com/routes/1812597

Anyway it looks like the climbs are near the beginning (~11 miles in) and near the end (~85 miles) with a long flat section in the middle.