# Relationship history for MSHA mine 2902443

Current hierarchy: **John D Brantley; Henry  McDonald → Valley Land LLC → Herron pit**

- 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:** Valley Land LLC → Herron pit; 2016-07-16 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Henry  McDonald et al → Herron pit; 2016-07-16 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Henry  McDonald et al → Valley Land LLC; 2016-07-16 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** John D Brantley et al → Valley Land LLC; 2016-07-16 to current/open; source msha-controller-operator-history