# Relationship history for MSHA mine 4300637

Current hierarchy: **Sue A Sinnamon → VARIN'S GRAVEL PIT, LLC → VARIN'S 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:** Varin's Gravel Pit, LLC → VARIN'S PIT; 2005-08-30 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Sue A  Beckman et al → VARIN'S PIT; 2005-08-30 to 2018-10-22; source msha-controller-operator-history
- **controller_controls_operator:** Sue A  Beckman et al → Varin's Gravel Pit, LLC; 2005-08-30 to 2018-10-22; source msha-controller-operator-history
- **controller_controls_operator:** David  Beckman et al → Varin's Gravel Pit, LLC; 2005-08-30 to 2018-10-22; source msha-controller-operator-history
- **controller_controls_mine:** Sue A Sinnamon → VARIN'S PIT; 2018-10-23 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Sue A Sinnamon → Varin's Gravel Pit, LLC; 2018-10-23 to current/open; source msha-controller-operator-history