# Relationship history for MSHA mine 3003143

Current hierarchy: **Floyd  Dart → HDJ Materials → FALKE'S 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

- **operator_operates_mine:** Falke's Quarry → FALKE'S QUARRY; 1995-05-01 to 2008-06-29; source msha-controller-operator-history
- **controller_controls_mine:** Falke Donald A → FALKE'S QUARRY; 1995-05-01 to 2001-11-22; source msha-controller-operator-history
- **controller_controls_operator:** Falke Donald A → Falke's Quarry; 1995-05-01 to 2001-11-22; source msha-controller-operator-history
- **controller_controls_mine:** Emil J  Galasso et al → FALKE'S QUARRY; 2001-11-23 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Emil J  Galasso et al → Falke's Quarry; 2001-11-23 to 2008-06-29; source msha-controller-operator-history
- **operator_operates_mine:** Cobleskill Stone Products Inc → FALKE'S QUARRY; 2008-06-30 to 2022-06-27; source msha-controller-operator-history
- **controller_controls_operator:** Emil J  Galasso et al → Cobleskill Stone Products Inc; 2008-06-30 to 2022-06-27; source msha-controller-operator-history
- **operator_operates_mine:** Belgian Trucking and Excavating, LLC → FALKE'S QUARRY; 2022-06-28 to 2023-03-30; source msha-controller-operator-history
- **controller_controls_mine:** Floyd  Dart → FALKE'S QUARRY; 2022-06-28 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Floyd  Dart → Belgian Trucking and Excavating, LLC; 2022-06-28 to 2023-03-30; source msha-controller-operator-history
- **operator_operates_mine:** HDJ Materials → FALKE'S QUARRY; 2023-03-31 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Floyd  Dart → FALKE'S QUARRY; 2023-03-31 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Floyd  Dart → HDJ Materials; 2023-03-31 to current/open; source msha-controller-operator-history