# Relationship history for MSHA mine 5001805

Current hierarchy: **Joseph D.  Smith → D & L Construction Co., Inc. → Slikok 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:** D & L Construction Co., Inc. → Slikok Pit; 2004-07-21 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Larry L  Smith  et al → Slikok Pit; 2004-07-21 to 2024-09-14; source msha-controller-operator-history
- **controller_controls_operator:** Larry L  Smith  et al → D & L Construction Co., Inc.; 2004-07-21 to 2024-09-14; source msha-controller-operator-history
- **controller_controls_operator:** Joseph D  Smith  et al → D & L Construction Co., Inc.; 2004-07-21 to 2024-09-14; source msha-controller-operator-history
- **controller_controls_mine:** Joseph D.  Smith → Slikok Pit; 2024-09-15 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Joseph D.  Smith → D & L Construction Co., Inc.; 2024-09-15 to current/open; source msha-controller-operator-history