Global Volcanism Program | Image GVP-01601
Taranaki volcano (previously called Egmont) has a breached summit crater that is occupied by a partially-destroyed lava plug. This view from the SE shows the stacked lava flows that form much of the cone, with the vegetated slopes of the parasitic cone, Fanthams Peak, at the left.
Photo by Chris Newhall, 1986(U.S. Geological Survey).
This image is made available as a Public Domain Work, but proper attribution is appreciated.