Longest submarine mountain range
- Who
- The Mid-Ocean Ridge
- What
- 65,000 kilometre(s)
- Where
- United Kingdom (Arctic Ocean)
- When
- 01 January 0001
The longest submarine mountain range is the Mid-Ocean Ridge, extending 65,000 km (40,000 miles) from the Arctic Ocean to the Atlantic Ocean, around Africa, Asia and Australia, and under the Pacific Ocean to the west coast of North America. It has a greatest height of 4,200 m (13,800 ft) above the base ocean depth.