# Relationship history for MSHA mine 2902451

Current hierarchy: **Restoration Group Inc; Toby  Fuentes → RGRM, LLC → Laguna Quarry**

- 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:** Rio Grande Redi-Mix LLC → Laguna Quarry; 2016-03-10 to 2018-12-06; source msha-controller-operator-history
- **controller_controls_mine:** Toby  Fuentes → Laguna Quarry; 2016-03-10 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Toby  Fuentes → Rio Grande Redi-Mix LLC; 2016-03-10 to 2018-12-06; source msha-controller-operator-history
- **operator_operates_mine:** RGRM, LLC → Laguna Quarry; 2018-12-07 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Toby  Fuentes et al → Laguna Quarry; 2018-12-07 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Toby  Fuentes et al → RGRM, LLC; 2018-12-07 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Restoration Group Inc et al → RGRM, LLC; 2018-12-07 to current/open; source msha-controller-operator-history