# Martian lava tube

> natural sub-surface lava tube cavern on Mars, believed to form as result of fast-moving basaltic lava flows

**Wikidata**: [Q16324533](https://www.wikidata.org/wiki/Q16324533)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Martian_lava_tube)  
**Source**: https://4ort.xyz/entity/martian-lava-tube