# Relationship history for MSHA mine 4104587

Current hierarchy: **Jorge R  Olalde → Olalde Stone Co → Adams Ranch**

- 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:** Olalde Stone Co → Adams Ranch; 2006-03-14 to 2010-11-30; source msha-controller-operator-history
- **controller_controls_mine:** Jorge R  Olalde → Adams Ranch; 2006-03-14 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Jorge R  Olalde → Olalde Stone Co; 2006-03-14 to 2010-11-30; source msha-controller-operator-history
- **operator_operates_mine:** Olalde Stone Co → Adams Ranch; 2010-12-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Jorge R  Olalde → Adams Ranch; 2010-12-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Jorge R  Olalde → Olalde Stone Co; 2010-12-01 to current/open; source msha-controller-operator-history