# Hole-in-the-Ground

> maar

**Wikidata**: [Q523385](https://www.wikidata.org/wiki/Q523385)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Hole-in-the-Ground)  
**Source**: https://4ort.xyz/entity/hole-in-the-ground


## References

1. Freebase Data Dumps. 2013
2. GeoNames