# Relationship history for MSHA mine 4605362

Current hierarchy: **Meredith Chester → Tri-County Mining Inc → #2 Surface 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:** Princess Cindy Mining Inc → #2 Surface Mine; 1976-11-01 to 1983-06-20; source msha-controller-operator-history
- **controller_controls_mine:** Ruptis Andrew → #2 Surface Mine; 1976-11-01 to 1983-06-20; source msha-controller-operator-history
- **controller_controls_operator:** Ruptis Andrew → Princess Cindy Mining Inc; 1976-11-01 to 1983-06-20; source msha-controller-operator-history
- **controller_controls_mine:** Meredith Chester & Michael Faykus → #2 Surface Mine; 1983-04-18 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Princess Cindy Mining Inc → #2 Surface Mine; 1983-06-21 to 1984-03-12; source msha-controller-operator-history
- **controller_controls_mine:** Hunnicutt Joseph W Iii → #2 Surface Mine; 1983-06-21 to 1984-03-12; source msha-controller-operator-history
- **controller_controls_operator:** Hunnicutt Joseph W Iii → Princess Cindy Mining Inc; 1983-06-21 to 1984-03-12; source msha-controller-operator-history
- **operator_operates_mine:** U & H Enterprises Inc → #2 Surface Mine; 1984-03-13 to 1984-04-22; source msha-controller-operator-history
- **controller_controls_mine:** Hopkins Daniel R → #2 Surface Mine; 1984-03-13 to 1984-04-22; source msha-controller-operator-history
- **controller_controls_operator:** Hopkins Daniel R → U & H Enterprises Inc; 1984-03-13 to 1984-04-22; source msha-controller-operator-history
- **operator_operates_mine:** Prosperity Mining Inc → #2 Surface Mine; 1984-04-23 to 1986-06-15; source msha-controller-operator-history
- **controller_controls_operator:** Meredith Chester & Michael Faykus → Prosperity Mining Inc; 1984-04-23 to 1986-06-15; source msha-controller-operator-history
- **controller_controls_mine:** Meredith Chester → #2 Surface Mine; 1986-04-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Tri-County Mining Inc → #2 Surface Mine; 1986-06-16 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Meredith Chester → Tri-County Mining Inc; 1986-06-16 to current/open; source msha-controller-operator-history