# Relationship history for MSHA mine 4406122

Current hierarchy: **Noah B  Lambert → Trinity Coal Inc → #2**

- 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:** Red Creek Coal Company Inc → #2; 1984-08-01 to 1993-09-28; source msha-controller-operator-history
- **controller_controls_mine:** Aubra P  Dean et al → #2; 1984-08-01 to 1993-09-28; source msha-controller-operator-history
- **controller_controls_operator:** Aubra P  Dean et al → Red Creek Coal Company Inc; 1984-08-01 to 1993-09-28; source msha-controller-operator-history
- **controller_controls_mine:** Noah B  Lambert → #2; 1993-05-13 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Trinity Coal Inc → #2; 1993-09-29 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Noah B  Lambert → Trinity Coal Inc; 1993-09-29 to current/open; source msha-controller-operator-history