# Relationship history for MSHA mine 3002255

Current hierarchy: **Sean M Gallivan → S M GALLIVAN LLC → ROUTE 81, LLC**

- Valid-time bounds: inclusive, date granularity
- Null end: open-ended in the upstream history row; not independent proof of present control
- Transaction-time observation: 2026-10-17T05:35:58.500035+00:00

## Valid-time edges

- **operator_operates_mine:** Manley Hillicoss Excavating Inc → ROUTE 81, LLC; 1950-01-01 to 2006-04-27; source msha-controller-operator-history
- **controller_controls_mine:** Gary  Hillicoss → ROUTE 81, LLC; 1950-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Gary  Hillicoss → Manley Hillicoss Excavating Inc; 1950-01-01 to 2006-04-27; source msha-controller-operator-history
- **operator_operates_mine:** Gary's Rt. 81 Stone Quarry Inc → ROUTE 81, LLC; 2006-04-28 to 2019-07-18; source msha-controller-operator-history
- **controller_controls_mine:** Gary  Hillicoss → ROUTE 81, LLC; 2006-04-28 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Gary  Hillicoss → Gary's Rt. 81 Stone Quarry Inc; 2006-04-28 to 2019-07-18; source msha-controller-operator-history
- **controller_controls_mine:** Sean M Gallivan → ROUTE 81, LLC; 2018-01-25 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** S M Gallivan LLC → ROUTE 81, LLC; 2019-07-19 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Sean M Gallivan → S M Gallivan LLC; 2019-07-19 to current/open; source msha-controller-operator-history