I’ve hiked up as high on the rock as I could get, which was the top of that large base, right under the smaller base that the hat sits atop. I don’t think there is a route higher unless you use gear. This picture does not do the hat justice, that feature is huge. Fun fact, when Royal Robbins made the “first ascent” of this feature- in 1962, a name was found to be scratched into the top of the rock….