# FALL OF ROOF OR BACK
> MSHA accident `220110320015` · 01/24/2011 · Lone Mountain Processing 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:** Arch Resources Inc
- **Operator:** Lone Mountain Processing LLC
- **Mine:** [1517234](https://api.ai-analytics.org/mine/1517234)
## Narrative

A roof fall was discovered on this date.  The fall was located in the 3-South return at crosscut #4 in the #1 entry.  The fall measured 40' by 20' and was 6' in thickness. The area was originally supported with 5' torque tension bolts. The area was dangered off.  No equipment or persons was affected.

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