# Relationship history for MSHA mine 4403484

Current hierarchy: **Doug  Dalton → Rocky Gap Quarry, LLC → ROCKY GAP QUARRY, LLC**

- 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:** Pounding Mill Quarry Corp → ROCKY GAP QUARRY, LLC; 1950-01-01 to 2018-07-01; source msha-controller-operator-history
- **controller_controls_mine:** C Mike  Hunter Jr et al → ROCKY GAP QUARRY, LLC; 1950-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** C Mike  Hunter Jr et al → Pounding Mill Quarry Corp; 1950-01-01 to 2018-07-01; source msha-controller-operator-history
- **controller_controls_operator:** William C Hunter et al → Pounding Mill Quarry Corp; 1950-01-01 to 2018-07-01; source msha-controller-operator-history
- **operator_operates_mine:** Rocky Gap Quarry, LLC → ROCKY GAP QUARRY, LLC; 2018-07-02 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Doug  Dalton → ROCKY GAP QUARRY, LLC; 2018-07-02 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Doug  Dalton → Rocky Gap Quarry, LLC; 2018-07-02 to current/open; source msha-controller-operator-history