Sore legs today so an easy day in the garden to recover.
If you turn on the relief filter in Google Maps you can see the 35km diameter circle of the remnant of the edge of the lava flow rim from the Tweed Volcano
Back when Diana Dors roamed the earth!
The diameter of the flow remnants is about 100km and is the largest erosion caldera in the southern hemisphere
Mt Warning is the remnant of the central plug right in the middle