Mount Popo is an old local name for Mount Merbabu (3,145 m / 10,318 ft), a dormant stratovolcano in Central Java, Indonesia. It is a single mountain, not a mountain range.
| Feature | Merbabu (Popo) | Merapi |
|---|---|---|
| Status | Dormant (last eruption ~1797) | Very active (frequent eruptions, pyroclastic flows) |
| Character | Forested, gentle slopes, popular trekking | Barren summit, dangerous, restricted access |
| Cultural | Sacred; annual pilgrimage (Merti Gunung) | Sacred; guardian spirit (Mbah Marijan) |
Trekkers often climb Merbabu (2–3 days) for sunrise views over Merapi and the Central Java plain.