# Relationship history for MSHA mine 0504546

Current hierarchy: **Daniel J Eckstine → Steincrusher LLC → Steincrusher 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:** Western Gravel Inc → Steincrusher LLC; 1994-05-01 to 2020-09-09; source msha-controller-operator-history
- **controller_controls_mine:** Judy  DeVincentis et al → Steincrusher LLC; 1994-05-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Judy  DeVincentis et al → Western Gravel Inc; 1994-05-01 to 2020-09-09; source msha-controller-operator-history
- **controller_controls_mine:** Jerry W Trudell et al → Steincrusher LLC; 2018-01-10 to 2019-10-29; source msha-controller-operator-history
- **controller_controls_mine:** Daniel J Eckstine et al → Steincrusher LLC; 2019-10-30 to 2023-04-30; source msha-controller-operator-history
- **operator_operates_mine:** Steincrusher LLC → Steincrusher LLC; 2020-09-10 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Jerry W Trudell et al → Steincrusher LLC; 2020-09-10 to 2019-10-29; source msha-controller-operator-history
- **controller_controls_operator:** Judy K DeVincentis et al → Steincrusher LLC; 2020-09-10 to 2019-10-29; source msha-controller-operator-history
- **controller_controls_operator:** Daniel J Eckstine et al → Steincrusher LLC; 2020-09-10 to 2019-10-29; source msha-controller-operator-history
- **controller_controls_operator:** Daniel J Eckstine et al → Steincrusher LLC; 2020-09-10 to 2023-04-30; source msha-controller-operator-history
- **controller_controls_operator:** Judy K DeVincentis et al → Steincrusher LLC; 2020-09-10 to 2023-04-30; source msha-controller-operator-history
- **controller_controls_mine:** Daniel J Eckstine → Steincrusher LLC; 2023-05-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Daniel J Eckstine → Steincrusher LLC; 2023-05-01 to current/open; source msha-controller-operator-history