# Relationship history for MSHA mine 2602785

Current hierarchy: **Nick  Smith; Tristine  Smith → Lone Mountain Mining LLC → Lone Mountain Mine**

- 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:** Lone Mountain Mining LLC → Lone Mountain Mine; 2015-12-08 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Nick  Smith et al → Lone Mountain Mine; 2015-12-08 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Nick  Smith et al → Lone Mountain Mining LLC; 2015-12-08 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Tristine  Smith et al → Lone Mountain Mining LLC; 2015-12-08 to current/open; source msha-controller-operator-history