# Relationship history for MSHA mine 2602348

Current hierarchy: **Nathan  Myers; Devin R  Lawrimore → Cedar Aggregates LLC → Crusher #1**

- 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:** Lawrimore Trucking Incorporated → Crusher #1; 1998-05-01 to 2005-05-24; source msha-controller-operator-history
- **controller_controls_mine:** Eagle Rock Ultra Trust → Crusher #1; 1998-05-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Eagle Rock Ultra Trust → Lawrimore Trucking Incorporated; 1998-05-01 to 2005-05-24; source msha-controller-operator-history
- **operator_operates_mine:** Cedar Aggregates LLC → Crusher #1; 2005-05-25 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Devin R  Lawrimore  et al → Crusher #1; 2005-05-25 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Devin R  Lawrimore  et al → Cedar Aggregates LLC; 2005-05-25 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Nathan  Myers  et al → Cedar Aggregates LLC; 2005-05-25 to current/open; source msha-controller-operator-history