This shows pretty much our entire route. Casaval Ridge on on the left, and Seargent's is on the right. Thumb Rock is the ramp-looking feature in the middle right of the photo. We climbed to just hiker's left of Thumb Rock, then make a left hand turn towards the summit. The trip down from Red Banks/Thumb Rock was awesome. It took us less than 30 minutes to lose 3000' of elevation!