# Relationship history for MSHA mine 4003483

Current hierarchy: **Michael Todd  Elledge → MTE Construction → Kelly Cove**

- 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:** MTE Construction → Kelly Cove; 2018-02-12 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Michael Todd  Elledge → Kelly Cove; 2018-02-12 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Michael Todd  Elledge → MTE Construction; 2018-02-12 to current/open; source msha-controller-operator-history