# Big Bone Cave

- **Country:** United States
- **Coordinates:** 35.772600, -85.557000
- **Area:** 400 acre
- **Added:** April 11, 1973
- **Embed:** yes
- **Access:** restricted
- **Length:** 9.627 m (15.494 km)
- **Refnum:** 73001853
- **Geology:** Monteagle Limestone
- **Hazards:** histoplasmosis
- **Website:** [http://www.tennessee.gov/environment/article/na-na-bone-cave TDEC: Big Bone Cave]
- **Location:** Van Buren County, Tennessee, United States
- **Locmapin:** Tennessee
- **Discovery:** c. 1810
- **Photo Width:** 250 px
- **Nearest City:** Bone Cave, Tennessee
- **Entrance List:** Main Entrance (collapsed), Arch Cave Entrance
- **Photo Caption:** Civil-war era saltpeter vat in Big Bone Cave
- **Entrance Count:** 2

![Photo of Big Bone Cave](https://upload.wikimedia.org/wikipedia/commons/7/7a/Big_bone_cave_saltpeter_vat.jpg)

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