This has to be among the best mid-grade boulder problems in the Front Range. Located on the Bob Boulder, follow the normal approach to the Terrain boulders, but head slightly downhill to the south just before the Fairview Boulder. The boulder is hidden from view until you're just above it.
This is the intimidating but stunning line on the east face. Beginning from a well chalked jug, make strenuous moves up to the obvious hueco. Traverse right to a rail and then fire straight up the seemingly blank section past hard to find crimps to the top. With the bouders at the base and the sloping hillside landing, this section feels pretty up-there.
(FWIW, I've seen this listed in various places as V5, but I've since seen this in CO Bouldering 2 as V4.)
Sort of highball, so several pads and spotters would be nice.
Maciej on What about Bob?
Ian entering the No Fall Zone.
Ian Cruising up the "seemingly blank face".