# Relationship history for MSHA mine 3003548

Current hierarchy: **Justin  Sokolowski; Matthew  Crakes → Crushmore LLC → Smiths Gravel**

- 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:** R.G. Rochester Inc. → Smiths Gravel; 2006-05-18 to 2012-02-22; source msha-controller-operator-history
- **controller_controls_mine:** Rick W  Geiken → Smiths Gravel; 2006-05-18 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Rick W  Geiken → R.G. Rochester Inc.; 2006-05-18 to 2012-02-22; source msha-controller-operator-history
- **operator_operates_mine:** Stone Goose Enterprises, Inc. → Smiths Gravel; 2012-02-23 to 2018-05-23; source msha-controller-operator-history
- **controller_controls_mine:** Kaye E  Gansz → Smiths Gravel; 2012-02-23 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Kaye E  Gansz → Stone Goose Enterprises, Inc.; 2012-02-23 to 2018-05-23; source msha-controller-operator-history
- **operator_operates_mine:** Crushmore LLC → Smiths Gravel; 2018-05-24 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Matthew  Crakes et al → Smiths Gravel; 2018-05-24 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Matthew  Crakes et al → Crushmore LLC; 2018-05-24 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Justin  Sokolowski et al → Crushmore LLC; 2018-05-24 to current/open; source msha-controller-operator-history