Maungaturoto centered in map of surface volcanics with basaltic scoria and lava fields (brown) of the Kaikohe-Bay of Islands volcanic field. Te Ahuahu and Tarahi (red shading) are to the east. Clicking on the map enlarges it, and enables panning and mouseover of volcanic feature name/wikilink and ages before present. The key to the other volcanics that are shown with panning is basalt - brown, monogenetic basalts - dark brown, undifferentiated basalts of the Tangihua Complex in Northland Allochthon - light brown, arc basalts - deep orange brown, arc ring basalts -orange brown, rhyolite - violet, dacite - purple, andesite - red , basaltic andesite`- light red, rhyolite - violet , ignimbrite (lighter shades of violet), and plutonic - gray.