Hawkins Peak can be seen from the Condor Gulch Trail. The rhyolite breccia in this area appears unstratified and the area may have been one of the eruptive source areas of the volcano. The rock in the Pinnacles area has a "volcanic tuff" texture (also called breccia). It formed from massive, exposive-style eruptions, more similar to the Mount St. Helens eruption than the calmer lava eruptions typical of Hawaii.