# Relationship history for MSHA mine 2902446

Current hierarchy: **Arturo D  Garcia; Donna M  Garcia → B-Stone, LLC Mine → B-Stone, LLC Mine**

- 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:** Lucero Mine → B-Stone, LLC Mine; 2015-04-28 to 2016-12-05; source msha-controller-operator-history
- **controller_controls_mine:** Anedina E  Martinez → B-Stone, LLC Mine; 2015-04-28 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Anedina E  Martinez → Lucero Mine; 2015-04-28 to 2016-12-05; source msha-controller-operator-history
- **operator_operates_mine:** B-Stone, LLC Mine → B-Stone, LLC Mine; 2016-12-06 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Arturo D  Garcia et al → B-Stone, LLC Mine; 2016-12-06 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Arturo D  Garcia et al → B-Stone, LLC Mine; 2016-12-06 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Donna M  Garcia et al → B-Stone, LLC Mine; 2016-12-06 to current/open; source msha-controller-operator-history