# FALL OF ROOF OR BACK
> MSHA accident `220121910023` · 07/07/2012 · Pinnacle Mining Company LLC
## 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:** Cleveland-Cliffs Inc
- **Operator:** Pinnacle Mining Company LLC
- **Mine:** [4601816](https://api.ai-analytics.org/mine/4601816)
## Narrative

Roof fall at West Mains track, #5 Entry at #146 break.  Rock measured 20' X 20' X 9'.  The location was mined in JUL 1989 and was bolted with 4' fully grouted bolts and 6' cable bolts.  The fall occurred 36,260' from the face.

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