# FALL OF ROOF OR BACK
> MSHA accident `220120450004` · 02/13/2012 · 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:** [4608159](https://api.ai-analytics.org/mine/4608159)
## Narrative

An unplanned roof fall was discovered at #9 belt 121 break #5 entry. Fall was approximately 20' Wide x 10' Long x 6-7' High. No injuries, entrapment or equipment involved. No ventilation, escape way, or travel way involved. This is a belt tunnel mine with non producing section.

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