# Relationship history for MSHA mine 0405448

Current hierarchy: **Granite Construction Inc → Granite Construction Company → Freeman Quarry**

- 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:** Granite Construction Inc → Freeman Quarry; 1950-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Eucon Corporation → Freeman Quarry; 1989-12-15 to 2008-10-05; source msha-controller-operator-history
- **operator_operates_mine:** West Coast Aggregates Inc. → Freeman Quarry; 2000-08-01 to 2002-11-17; source msha-controller-operator-history
- **controller_controls_operator:** Eucon Corporation → West Coast Aggregates Inc.; 2000-08-01 to 2002-11-17; source msha-controller-operator-history
- **operator_operates_mine:** Granite Construction Company → Freeman Quarry; 2002-11-18 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Granite Construction Inc → Granite Construction Company; 2002-11-18 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Lafarge North America Inc. et al → Freeman Quarry; 2008-10-06 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Lafarge North America Inc. et al → West Coast Aggregates Inc.; 2008-10-06 to 2002-11-17; source msha-controller-operator-history
- **controller_controls_operator:** Richard O DeAtley et al → West Coast Aggregates Inc.; 2008-10-06 to 2002-11-17; source msha-controller-operator-history
- **controller_controls_operator:** Neal  DeAtley et al → West Coast Aggregates Inc.; 2008-10-06 to 2002-11-17; source msha-controller-operator-history