# Relationship history for MSHA mine 0203457

Current hierarchy: **Wyatt  Orr → Earth Resources Corporation → ERC Pit #3 -- Granite Dells**

- 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:** Wilson Wayne  Orr → ERC Pit #3 -- Granite Dells; 2017-02-22 to 2024-01-15; source msha-controller-operator-history
- **operator_operates_mine:** Mohave Construction Services, LLC → ERC Pit #3 -- Granite Dells; 2022-08-02 to 2025-07-15; source msha-controller-operator-history
- **controller_controls_mine:** Owen  McCrae et al → ERC Pit #3 -- Granite Dells; 2022-08-02 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Owen  McCrae et al → Mohave Construction Services, LLC; 2022-08-02 to 2025-07-15; source msha-controller-operator-history
- **controller_controls_operator:** Cynthia  McCrae et al → Mohave Construction Services, LLC; 2022-08-02 to 2025-07-15; source msha-controller-operator-history
- **controller_controls_mine:** Wyatt  Orr → ERC Pit #3 -- Granite Dells; 2024-01-16 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Earth Resources Corporation → ERC Pit #3 -- Granite Dells; 2025-07-16 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Wilson Wayne  Orr → Earth Resources Corporation; 2025-07-16 to 2024-01-15; source msha-controller-operator-history
- **controller_controls_operator:** Wyatt  Orr → Earth Resources Corporation; 2025-07-16 to current/open; source msha-controller-operator-history