# Relationship history for MSHA mine 0405538

Current hierarchy: **John Grant  Kelsey → Merced River Mining & Reclamation Corp → Merced River Mining**

- Valid-time bounds: inclusive, date granularity
- Null end: open-ended in the upstream history row; not independent proof of present control
- Transaction-time observation: 2026-10-13T11:19:05.459773+00:00

## Valid-time edges

- **operator_operates_mine:** Merced River Mining & Reclamation Corp → Merced River Mining; 2002-10-03 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** John Grant  Kelsey → Merced River Mining; 2002-10-03 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** John Grant  Kelsey → Merced River Mining & Reclamation Corp; 2002-10-03 to current/open; source msha-controller-operator-history