Global Volcanism Program | Image GVP-11475
The Ankaratra volcanic field in central Madagascar consists of lava domes, fissure vents, scoria cones, and maars. The volcanic field is one of the largest on the island and covers a 100-km-long area in central Madagascar. Hot springs occur at Ranomafana. N is at the top in this NASA Landsat image.
NASA Landsat 7 image (worldwind.arc.nasa.gov)