Mojanda is a complex of two volcanoes which were active simultaneously. The
volcanic vents are only 3 km apart. The other volcano, which produced at
least two Plinian Eruptions of its own, is known as
Fuya Fuya. Fuya Fuya
partially collapsed around 165,000 years ago, creating a large caldera to
the west. A new volcanic cone and other lava domes subsequently extruded inside
the caldera, probably during the Late Pleistocene.
The high altitude grasslands and shrublands
of Mojanda, which lie above the cloud forests, are collectively known as