Imun is a small dacitic and rhyolitic lava cone at 20 km (12,42 miles) south of Lake Toba and 6 km (3,72 miles) north of the town of Situmeang.
Imun is a small dacitic and rhyolitic lava cone located 20 km (12.42 miles) south of Lake Toba and 6 km (3.72 miles) north of the town of Situmeang.