# Relationship history for MSHA mine 3402174

Current hierarchy: **Kenneth Blain  Blaylock → Nashoba Stone LLC → Yote #1**

- 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:** Yote Stone → Yote #1; 2018-02-26 to 2023-04-02; source msha-controller-operator-history
- **controller_controls_mine:** Kenneth Blaine Blaylock et al → Yote #1; 2018-02-26 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Kenneth Blaine Blaylock et al → Yote Stone; 2018-02-26 to 2023-04-02; source msha-controller-operator-history
- **controller_controls_operator:** Chance M Gros et al → Yote Stone; 2018-02-26 to 2023-04-02; source msha-controller-operator-history
- **operator_operates_mine:** Nashoba Stone LLC → Yote #1; 2023-04-03 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Kenneth Blain  Blaylock → Yote #1; 2023-04-03 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Kenneth Blain  Blaylock → Nashoba Stone LLC; 2023-04-03 to current/open; source msha-controller-operator-history