# Relationship history for MSHA mine 1513710

Current hierarchy: **Kalish Marc → K A M Coal Company Inc → Mine #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:** Lake City Enterprises Inc → Mine #1; 1982-09-01 to 1984-07-16; source msha-controller-operator-history
- **controller_controls_mine:** Reese Thomas L → Mine #1; 1982-09-01 to 1984-07-16; source msha-controller-operator-history
- **controller_controls_operator:** Reese Thomas L → Lake City Enterprises Inc; 1982-09-01 to 1984-07-16; source msha-controller-operator-history
- **operator_operates_mine:** Monteray Mining Company Inc → Mine #1; 1984-07-17 to 1984-12-25; source msha-controller-operator-history
- **controller_controls_mine:** Simpson Daniel → Mine #1; 1984-07-17 to 1984-12-25; source msha-controller-operator-history
- **controller_controls_operator:** Simpson Daniel → Monteray Mining Company Inc; 1984-07-17 to 1984-12-25; source msha-controller-operator-history
- **operator_operates_mine:** K A M Coal Company Inc → Mine #1; 1984-12-26 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Kalish Marc → Mine #1; 1984-12-26 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Kalish Marc → K A M Coal Company Inc; 1984-12-26 to current/open; source msha-controller-operator-history