# Relationship history for MSHA mine 3304219

Current hierarchy: **Intercarbon Coal Co-Jennerstown Mining Inc → Lion Mining Company → Elk Run 101 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

- **controller_controls_mine:** Intercarbon Coal Co-Jennerstown Mining Inc Et Al → Elk Run 101 Mine; 1985-06-17 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Pittsburgh & Ohio Coal Company → Elk Run 101 Mine; 1990-10-01 to 1991-02-17; source msha-controller-operator-history
- **controller_controls_mine:** Testa Leonard J → Elk Run 101 Mine; 1990-10-01 to 1991-02-17; source msha-controller-operator-history
- **controller_controls_operator:** Testa Leonard J → Pittsburgh & Ohio Coal Company; 1990-10-01 to 1991-02-17; source msha-controller-operator-history
- **operator_operates_mine:** Lion Mining Company → Elk Run 101 Mine; 1991-02-18 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Intercarbon Coal Co-Jennerstown Mining Inc Et Al → Lion Mining Company; 1991-02-18 to current/open; source msha-controller-operator-history