# SLIP OR FALL OF PERSON
> MSHA accident `220252450013` · 08/25/2025 · Riverdale Quarry LLC
## Details
- **Degree of injury:** DYS AWY FRM WRK & RESTRCTD ACT
- **Classification:** SLIP OR FALL OF PERSON
- **Accident type:** Fall to the walkway or working surface
- **Occupation:** Drill operator
- **Activity:** Walking, Running
- **Injury source:** GROUND
- **Nature of injury:** SPRAIN,STRAIN RUPT DISC
- **Body part:** KNEE/PATELLA
- **Days lost:** 4
- **Mine experience:** 0.5 years
## Operator
- **Controller:** Roger  Mahan; Gary  Mahan
- **Operator:** Riverdale Quarry LLC
- **Mine:** [2800001](https://api.ai-analytics.org/mine/2800001)
## Narrative

Driller fell into test borehole while walking to drill.

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