# Relationship history for MSHA mine 0504551

Current hierarchy: **Jeff  Ploen; Lance  Baller → High Speed Mining LLC → Fairplay Placer**

- 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:** Gold Park Recovery & Reclamation Inc → Fairplay Placer; 1950-01-01 to 2013-06-18; source msha-controller-operator-history
- **controller_controls_mine:** Boyd  Astemborski → Fairplay Placer; 1950-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Boyd  Astemborski → Gold Park Recovery & Reclamation Inc; 1950-01-01 to 2013-06-18; source msha-controller-operator-history
- **operator_operates_mine:** Destiny Mining, LLC → Fairplay Placer; 2013-06-19 to 2013-11-30; source msha-controller-operator-history
- **controller_controls_mine:** Ralph  Pittman et al → Fairplay Placer; 2013-06-19 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Ralph  Pittman et al → Destiny Mining, LLC; 2013-06-19 to 2013-11-30; source msha-controller-operator-history
- **controller_controls_operator:** Boyd  Astemborski et al → Destiny Mining, LLC; 2013-06-19 to 2013-11-30; source msha-controller-operator-history
- **operator_operates_mine:** High Speed Mining LLC → Fairplay Placer; 2013-12-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Jeff  Ploen et al → Fairplay Placer; 2013-12-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Jeff  Ploen et al → High Speed Mining LLC; 2013-12-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Lance  Baller et al → High Speed Mining LLC; 2013-12-01 to current/open; source msha-controller-operator-history