# Relationship history for MSHA mine 0404475

Current hierarchy: **Adam Tom & Will → Inland Rock → Miranda Pine 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:** Pine Canyon Rock Inc → Miranda Pine Quarry; 1980-11-01 to 1986-02-25; source msha-controller-operator-history
- **controller_controls_mine:** Fox G W → Miranda Pine Quarry; 1980-11-01 to 1986-02-25; source msha-controller-operator-history
- **controller_controls_operator:** Fox G W → Pine Canyon Rock Inc; 1980-11-01 to 1986-02-25; source msha-controller-operator-history
- **operator_operates_mine:** Inland Rock → Miranda Pine Quarry; 1986-02-26 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Adam Tom & Will Et Al → Miranda Pine Quarry; 1986-02-26 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Adam Tom & Will Et Al → Inland Rock; 1986-02-26 to current/open; source msha-controller-operator-history