# Relationship history for MSHA mine 3201060

Current hierarchy: **Kristi B Fike; Doug  Fike → HARVEY READY MIX, INC. → MUSCHA PIT**

- 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:** HARVEY READY MIX, INC. → MUSCHA PIT; 2015-08-19 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Doug  Fike et al → MUSCHA PIT; 2015-08-19 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Doug  Fike et al → HARVEY READY MIX, INC.; 2015-08-19 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Kristi B Fike et al → HARVEY READY MIX, INC.; 2015-08-19 to current/open; source msha-controller-operator-history