# Relationship history for MSHA mine 4003277

Current hierarchy: **Van  Bringle; Charles  Ennis; Seaton  Ellis → Gravel Sand and Solid Rock → Gravel Sand & Solid Rock**

- 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

- **controller_controls_mine:** Frank  Climer → Gravel Sand & Solid Rock; 2000-04-28 to 2013-07-30; source msha-controller-operator-history
- **operator_operates_mine:** Ruleman's Sand & Gravel Plant #4, Inc. → Gravel Sand & Solid Rock; 2006-05-08 to 2019-12-02; source msha-controller-operator-history
- **controller_controls_operator:** Frank  Climer → Ruleman's Sand & Gravel Plant #4, Inc.; 2006-05-08 to 2013-07-30; source msha-controller-operator-history
- **controller_controls_mine:** Scott E  Climer et al → Gravel Sand & Solid Rock; 2013-07-31 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Scott E  Climer et al → Ruleman's Sand & Gravel Plant #4, Inc.; 2013-07-31 to 2019-12-02; source msha-controller-operator-history
- **controller_controls_operator:** Stephen F  Climer et al → Ruleman's Sand & Gravel Plant #4, Inc.; 2013-07-31 to 2019-12-02; source msha-controller-operator-history
- **operator_operates_mine:** Gravel Sand and Solid Rock → Gravel Sand & Solid Rock; 2019-12-03 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Charles  Ennis et al → Gravel Sand & Solid Rock; 2019-12-03 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Charles  Ennis et al → Gravel Sand and Solid Rock; 2019-12-03 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Seaton  Ellis et al → Gravel Sand and Solid Rock; 2019-12-03 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Van  Bringle et al → Gravel Sand and Solid Rock; 2019-12-03 to current/open; source msha-controller-operator-history