# Relationship history for MSHA mine 3503466

Current hierarchy: **Robert E  Lattin; Mike L  Lattin → Comco Construction → Brashler Pit**

- 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:** Comco Construction → Brashler Pit; 1998-06-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Mike L  Lattin  et al → Brashler Pit; 1998-06-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Mike L  Lattin  et al → Comco Construction; 1998-06-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Robert E  Lattin  et al → Comco Construction; 1998-06-01 to current/open; source msha-controller-operator-history