# hadal zone

> composed of trench zones, is the delineation for the deepest trenches in the ocean. The hadal zone is found from a depth to the bottom of the ocean of around 6,000 to 11,000 metres and exists in long but narrow topographic V-shaped depressions

**Wikidata**: [Q746158](https://www.wikidata.org/wiki/Q746158)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Hadal_zone)  
**Source**: https://4ort.xyz/entity/hadal-zone


## References

1. Freebase Data Dumps. 2013
2. BBC Things
3. Quora