# Relationship history for MSHA mine 2402282

Current hierarchy: **Jeremy D  Shea; Dan V  Bates → Crazy Mountain Rock Inc → Crazy Mountain Rock Inc**

- Valid-time bounds: inclusive, date granularity
- Null end: open-ended in the upstream history row; not independent proof of present control
- Transaction-time observation: 2026-10-17T05:35:58.500035+00:00

## Valid-time edges

- **operator_operates_mine:** Livingston Sand & Gravel Inc. → Crazy Mountain Rock Inc; 2002-05-06 to 2007-11-28; source msha-controller-operator-history
- **controller_controls_mine:** Ed  Hillman → Crazy Mountain Rock Inc; 2002-05-06 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Ed  Hillman → Livingston Sand & Gravel Inc.; 2002-05-06 to 2007-11-28; source msha-controller-operator-history
- **operator_operates_mine:** Crazy Mountain Rock Inc → Crazy Mountain Rock Inc; 2007-11-29 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Dan V  Bates  et al → Crazy Mountain Rock Inc; 2007-11-29 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Dan V  Bates  et al → Crazy Mountain Rock Inc; 2007-11-29 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Jeremy D  Shea  et al → Crazy Mountain Rock Inc; 2007-11-29 to current/open; source msha-controller-operator-history