# Pluto's Cave

- **Country:** United States
- **Length:** 0.5 to
- **Geology:** Lava tube
- **Location:** Klamath National Forest; Siskiyou County, California, United States
- **Discovery:** 1863
- **Photo Caption:** Entrance to the cave

Evidence was found of its use by Pre-Columbian peoples. Visitors can safely hike into the cave about .

![Photo of Pluto's Cave](https://upload.wikimedia.org/wikipedia/commons/1/12/Plutos_cave_altar_hole.jpeg)

**Source:** https://en.wikipedia.org/wiki/Pluto's_Cave (Wikipedia, CC BY-SA)