# Nirgal Vallis

> vallis on Mars

**Wikidata**: [Q1107469](https://www.wikidata.org/wiki/Q1107469)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Nirgal_Vallis)  
**Source**: https://4ort.xyz/entity/nirgal-vallis


## References

1. Virtual International Authority File
2. BnF authorities
3. Gazetteer of Planetary Nomenclature
4. Freebase Data Dumps. 2013