# Relationship history for MSHA mine 3102281

Current hierarchy: **Jerry Keith Adams → Tarheel Sand and Stone Inc → Settle 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

- **controller_controls_mine:** Jerry Keith Adams → Settle Pit; 1995-01-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Tarheel Sand and Stone Inc → Settle Pit; 2013-03-15 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Jerry Keith Adams → Tarheel Sand and Stone Inc; 2013-03-15 to current/open; source msha-controller-operator-history