# cliff

> significant vertical, or near vertical, rock exposure

**Wikidata**: [Q107679](https://www.wikidata.org/wiki/Q107679)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Cliff)  
**Source**: https://4ort.xyz/entity/cliff


## References

1. Integrated Authority File
2. Freebase Data Dumps. 2013
3. BBC Things
4. YSO-Wikidata mapping project
5. [Environment Ontology](https://raw.githubusercontent.com/INCATools/environments2wikidata/master/matches/curated-high-confidence-envo.tsv)
6. Quora
7. [Source](https://golden.com/wiki/Cliff-KEWRX)
8. National Library of Israel
9. KBpedia
10. GF WordNet
11. [OpenAlex](https://docs.openalex.org/download-snapshot/snapshot-data-format)