# Relationship history for MSHA mine 1518194

Current hierarchy: **James H  Rice → Deering Rd LLC → Deering Rd.  Sand**

- 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:** Deering Rd LLC → Deering Rd.  Sand; 1999-09-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** James H  Rice et al → Deering Rd.  Sand; 1999-09-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** James H  Rice et al → Deering Rd LLC; 1999-09-01 to current/open; source msha-controller-operator-history