Green Mountain Pinnacle isn't. It is, however, at little jab of stone appended to the North flank of the Fourth Flatiron. It sits in the forest on the West (uphill) end of the Fourth Flatiron, but is sufficiently distinct that you can scramble all the way around it.
Using Rossiter's North guide, Green Mountain Pinnacle would be the 8th named rock with The First Flatiron as #1. My guess is that people use many approaches to reach GMP. Our approach was always to hike the Mesa Trail to a spot South of the Third Flatiron. A trail heads up Bluebell Canyon, and after a short ways one can take off South of the trail and bush-whack to the apparent West end of the Fourth FI. This always felt as though we had hiked to near the top of the hill. When you finally see it well, through the trees, you won't miss it. The North wall is very yellow. If you look for it, you can see GMP from Baseline road in Boulder and pretty much keep a good eye on it hiking the trail.
Browse More Classics in Green Mountain Pinnacle
Mountain Project's determination of some of the classic, most popular, highest rated routes for Green Mountain Pinnacle:
Takin' Care of Business/ West Chimney 5.5 Trad, 1 pitch, 100 feet
Faith and Resurrection 5.10a PG13 Trad, 1 pitch, 70 feet
Death and Transfiguration 5.11b Trad, 1 pitch, 75 feet
Salsa Verde 5.11c Sport, 1 pitch, 50 feet
Transgression 5.12a/b Trad, 1 pitch, 100 feet
Featured Route For Green Mountain Pinnacle
Death and Transfiguration 5.11b CO : Flatirons : ... : Green Mountain Pinnacle
Twenty years ago, when we did not have as many bolts or as many routes, a few omnious lines stood head a shoulders above the rest, challenging, defiant, and implacable. Death and Transfiguration was one of these routes. The old Erickson guide, and tattered Bible, describes climbing DT as a "renaissance of extinguished arm strength", and I have never forgotten that turn of phrase. The photo of Roger Briggs stemmed under the roof could leave us sleepless and in a sweat of anticipation the night b...[more] Browse More Classics in CO