# Relationship history for MSHA mine 3609568

Current hierarchy: **Sweet Water Quarries LLC; Three River Agg Holding LLC → Three Rivers Aggregate Holding LLC → Black Run**

- 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:** Ennstone PLC → Black Run; 1997-07-29 to 2009-06-10; source msha-controller-operator-history
- **operator_operates_mine:** Three Rivers Aggregates → Black Run; 2007-10-23 to 2010-04-18; source msha-controller-operator-history
- **controller_controls_operator:** Ennstone PLC → Three Rivers Aggregates; 2007-10-23 to 2009-06-10; source msha-controller-operator-history
- **controller_controls_mine:** Mark  Elliott → Black Run; 2009-06-11 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Mark  Elliott → Three Rivers Aggregates; 2009-06-11 to 2010-04-18; source msha-controller-operator-history
- **operator_operates_mine:** Three Rivers Aggregate Holding LLC → Black Run; 2010-04-19 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Sweet Water Quarries LLC et al → Black Run; 2010-04-19 to 2021-12-31; source msha-controller-operator-history
- **controller_controls_operator:** Sweet Water Quarries LLC et al → Three Rivers Aggregate Holding LLC; 2010-04-19 to 2021-12-31; source msha-controller-operator-history
- **controller_controls_operator:** Lindy Paving Incorporated et al → Three Rivers Aggregate Holding LLC; 2010-04-19 to 2021-12-31; source msha-controller-operator-history
- **controller_controls_mine:** Three River Agg Holding LLC et al → Black Run; 2022-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Three River Agg Holding LLC et al → Three Rivers Aggregate Holding LLC; 2022-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Sweet Water Quarries LLC et al → Three Rivers Aggregate Holding LLC; 2022-01-01 to current/open; source msha-controller-operator-history