I saw that the VeloNews site had a photo of Mt. Diablo in the photo of the month contest. This was submitted by Keith Thibault and shows a rider going up NGR approaching the Bump. Whoever took the photo must have climbed up some rock formation or something to get this angle.

Edit: Keith e-mailed me and had this to say about the photo:
"Regarding the photo, I was hiking around taking pics on the north gate road when I paused to shoot a couple of a cyclist climbing the road. I like the winter light, and the late afternoon mood. I was on the hillside above the road, as you implied." Keith - thanks for a great shot - any Diablo photo you take is welcome here.