# Relationship history for MSHA mine 0801281

Current hierarchy: **Nick T  Stewart → Stewart Materials, LLC → Capron Trails 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

- **controller_controls_mine:** Dickerson Group Inc → Capron Trails Mine; 1979-12-28 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Nick T  Stewart → Capron Trails Mine; 1991-02-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Dickerson Aggregates Inc → Capron Trails Mine; 2000-03-01 to 2014-01-12; source msha-controller-operator-history
- **controller_controls_operator:** Dickerson Group Inc → Dickerson Aggregates Inc; 2000-03-01 to 2014-01-12; source msha-controller-operator-history
- **operator_operates_mine:** Stewart Materials, LLC → Capron Trails Mine; 2014-01-13 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Nick T  Stewart → Stewart Materials, LLC; 2014-01-13 to current/open; source msha-controller-operator-history