# Relationship history for MSHA mine 4202225

Current hierarchy: **David  Kimmerle; Kyle  Kimmerle → Kimmerle Mining LLC → South Cottonwood Mines-Easy Peasy Port**

- Valid-time bounds: inclusive, date granularity
- Null end: open-ended in the upstream history row; not independent proof of present control
- Transaction-time observation: 2026-10-18T09:31:49.615908+00:00

## Valid-time edges

- **operator_operates_mine:** Yellow Tree Mining → South Cottonwood Mines-Easy Peasy Port; 1998-11-01 to 2019-05-19; source msha-controller-operator-history
- **controller_controls_mine:** Shumway Terry & Colby → South Cottonwood Mines-Easy Peasy Port; 1998-11-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Shumway Terry & Colby → Yellow Tree Mining; 1998-11-01 to 2019-05-19; source msha-controller-operator-history
- **controller_controls_mine:** David  Kimmerle et al → South Cottonwood Mines-Easy Peasy Port; 2012-04-10 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Kimmerle Mining LLC → South Cottonwood Mines-Easy Peasy Port; 2019-05-20 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** David  Kimmerle et al → Kimmerle Mining LLC; 2019-05-20 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Kyle  Kimmerle et al → Kimmerle Mining LLC; 2019-05-20 to current/open; source msha-controller-operator-history