# Relationship history for MSHA mine 2901995

Current hierarchy: **Hector  Infante → Infante'S Rocks → COM PIT #1**

- 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:** Marcos Infante & Sons → COM PIT #1; 1985-07-01 to 1997-12-17; source msha-controller-operator-history
- **controller_controls_mine:** Marcos  Infante → COM PIT #1; 1985-07-01 to 1997-12-17; source msha-controller-operator-history
- **controller_controls_operator:** Marcos  Infante → Marcos Infante & Sons; 1985-07-01 to 1997-12-17; source msha-controller-operator-history
- **operator_operates_mine:** Infante'S Rocks → COM PIT #1; 1997-12-18 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Hector  Infante → COM PIT #1; 1997-12-18 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Hector  Infante → Infante'S Rocks; 1997-12-18 to current/open; source msha-controller-operator-history