# Relationship history for MSHA mine 1700986

Current hierarchy: **Melanie  Pelletier; Scott  Pelletier → Glenburn Sand and Gravel LLC → Glenburn Sand and Gravel**

- Valid-time bounds: inclusive, date granularity
- Null end: open-ended in the upstream history row; not independent proof of present control
- Transaction-time observation: 2026-10-18T09:31:49.615908+00:00

## Valid-time edges

- **operator_operates_mine:** Glenburn Sand and Gravel LLC → Glenburn Sand and Gravel; 2016-07-21 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Scott  Pelletier et al → Glenburn Sand and Gravel; 2016-07-21 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Scott  Pelletier et al → Glenburn Sand and Gravel LLC; 2016-07-21 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Melanie  Pelletier et al → Glenburn Sand and Gravel LLC; 2016-07-21 to current/open; source msha-controller-operator-history