# Relationship history for MSHA mine 3102067

Current hierarchy: **Raymond S  Cecile → Radford Quarries of Boone, Inc → Glendale Springs 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: 2026-10-13T11:19:05.459773+00:00

## Valid-time edges

- **operator_operates_mine:** Mountain Stone Company → Glendale Springs Quarry; 1990-10-01 to 1999-01-21; source msha-controller-operator-history
- **controller_controls_mine:** Joe  Eastridge → Glendale Springs Quarry; 1990-10-01 to 1999-01-21; source msha-controller-operator-history
- **controller_controls_operator:** Joe  Eastridge → Mountain Stone Company; 1990-10-01 to 1999-01-21; source msha-controller-operator-history
- **operator_operates_mine:** Henkel's Mountain Stone Inc → Glendale Springs Quarry; 1999-01-22 to 2008-05-25; source msha-controller-operator-history
- **controller_controls_mine:** Rodney  Henkel → Glendale Springs Quarry; 1999-01-22 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Rodney  Henkel → Henkel's Mountain Stone Inc; 1999-01-22 to 2008-05-25; source msha-controller-operator-history
- **controller_controls_mine:** Raymond S  Cecile et al → Glendale Springs Quarry; 2004-07-29 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Radford Quarries of Boone, Inc → Glendale Springs Quarry; 2008-05-26 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Raymond S  Cecile et al → Radford Quarries of Boone, Inc; 2008-05-26 to current/open; source msha-controller-operator-history