# Relationship history for MSHA mine 3402171

Current hierarchy: **Shelby Wade  Tomlin → Boggy Hollow Stone LLC → Boggy Hollow Stone**

- 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:** Boggy Hollow Stone LLC → Boggy Hollow Stone; 2017-11-28 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Nicholas Elliot  Steichen et al → Boggy Hollow Stone; 2017-11-28 to 2019-03-11; source msha-controller-operator-history
- **controller_controls_operator:** Nicholas Elliot  Steichen et al → Boggy Hollow Stone LLC; 2017-11-28 to 2019-03-11; source msha-controller-operator-history
- **controller_controls_operator:** Shelby W Tomlin et al → Boggy Hollow Stone LLC; 2017-11-28 to 2019-03-11; source msha-controller-operator-history
- **controller_controls_mine:** Shelby Wade  Tomlin → Boggy Hollow Stone; 2019-03-12 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Shelby Wade  Tomlin → Boggy Hollow Stone LLC; 2019-03-12 to current/open; source msha-controller-operator-history