# FALL OF ROOF OR BACK
> MSHA accident `220133470003` · 12/06/2013 · Mammoth Coal Co
## Details
- **Degree of injury:** ACCIDENT ONLY
- **Classification:** FALL OF ROOF OR BACK
- **Accident type:** Accident type, without injuries
- **Occupation:** —
- **Activity:** —
- **Injury source:** —
- **Nature of injury:** —
- **Body part:** —
- **Days lost:** 0
- **Mine experience:** — years
## Operator
- **Controller:** Alpha Natural Resources, Inc.
- **Operator:** Mammoth Coal Co
- **Mine:** [4609148](https://api.ai-analytics.org/mine/4609148)
## Narrative

An unexplained roof fall occurred in the neutral entry at 16 crosscut on #18 belt. No ventilation controls, equipment, or travel ways were damaged by the fall. The fall was approximately 70' long x 19' wide x 8' thick.

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*Source: [MSHA Open Government Data](https://arlweb.msha.gov/OpenGovernmentData/) · AI Analytics · CC0 1.0*