I thought 11% seemed like a bit much as well. That's Sierra Road/Welch Creek territory. 
With my CicloSport computer I can download the % gradient over very short intervals of a climb.
So, I pulled up the data from one of the times I climbed the entire mountain up the north side, and dumped the data into this spredsheet.
I color-coded the gradient values so that < 6 % is white, 6% to 8% is yellow, > 8% to 10% is orange and > 10% is red. Apart from the last bit to the summit, there are not very many stretches over 10%. The brief steep sections are mainly switchbacks, and the gradient there depends in part on what line you take going around.
My numbers worked out to about 6% average gradient from the North Gate to the Junction, and 7% average gradient from the Junction to the summit.
Last edited by jobob; 12-10-2007 at 11:19 PM.
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