# Relationship history for MSHA mine 4502055

Current hierarchy: **Albert E  DeAtley → Timberland Paving & Construction Company → Brim 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:** Lewis County-Department Of Public Works → Brim Pit; 1950-01-01 to 1983-03-16; source msha-controller-operator-history
- **controller_controls_mine:** Lewis County-Wa → Brim Pit; 1950-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Lewis County-Wa → Lewis County-Department Of Public Works; 1950-01-01 to 1983-03-16; source msha-controller-operator-history
- **operator_operates_mine:** Timberland Paving & Construction Company → Brim Pit; 1983-03-17 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Albert E  DeAtley → Brim Pit; 1983-03-17 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Albert E  DeAtley → Timberland Paving & Construction Company; 1983-03-17 to current/open; source msha-controller-operator-history