# Relationship history for MSHA mine 4104510

Current hierarchy: **James Construction Group, LLC → Miller Springs Material L.L.C. → Cove Quarry**

- 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:** Connie  Spiegel et al → Cove Quarry; 1950-01-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Shallow Ford Construction Co., Inc. → Cove Quarry; 2005-02-28 to 2012-01-09; source msha-controller-operator-history
- **controller_controls_operator:** Connie  Spiegel et al → Shallow Ford Construction Co., Inc.; 2005-02-28 to 2012-01-09; source msha-controller-operator-history
- **controller_controls_mine:** James Construction Group, LLC → Cove Quarry; 2010-11-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Miller Springs Material L.L.C. → Cove Quarry; 2012-01-10 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** James Construction Group, LLC → Miller Springs Material L.L.C.; 2012-01-10 to current/open; source msha-controller-operator-history