The Green Mountain is a mountain range approximately 80 km (50 mi) long and 32 km (20 mi) wide, that is part of the Hajar Mountains in Ad Dakhiliyah Governorate of Oman. It rises to a height of 3,018 m (9,902 ft) and encompasses the Saiq Plateau at 2,000 m (6,600 ft) above sea level.