# Relationship history for MSHA mine 2402209

Current hierarchy: **Bridget A Korpi; Adam R Korpi → Ironside Stone Works Inc → Ironside Stone Works Quarry**

- 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:** Gates Slate, Inc → Ironside Stone Works Quarry; 2001-02-08 to 2012-06-11; source msha-controller-operator-history
- **controller_controls_mine:** Lewis D  Morris → Ironside Stone Works Quarry; 2001-02-08 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Lewis D  Morris → Gates Slate, Inc; 2001-02-08 to 2012-06-11; source msha-controller-operator-history
- **operator_operates_mine:** Smith Mining & Excavation, LLC → Ironside Stone Works Quarry; 2012-06-12 to 2018-03-22; source msha-controller-operator-history
- **controller_controls_mine:** Eric J  Smith → Ironside Stone Works Quarry; 2012-06-12 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Eric J  Smith → Smith Mining & Excavation, LLC; 2012-06-12 to 2018-03-22; source msha-controller-operator-history
- **operator_operates_mine:** Ironside Stone Works Inc → Ironside Stone Works Quarry; 2018-03-23 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Adam R Korpi et al → Ironside Stone Works Quarry; 2018-03-23 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Adam R Korpi et al → Ironside Stone Works Inc; 2018-03-23 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Bridget A Korpi et al → Ironside Stone Works Inc; 2018-03-23 to current/open; source msha-controller-operator-history