# Relationship history for MSHA mine 0202755

Current hierarchy: **Mary E  Guthrie → TRP, LLC → The Recycling Pit**

- 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:** The Recycling Pit → The Recycling Pit; 1998-03-01 to 2001-11-27; source msha-controller-operator-history
- **controller_controls_mine:** Ernest A  York → The Recycling Pit; 1998-03-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Ernest A  York → The Recycling Pit; 1998-03-01 to 2001-11-27; source msha-controller-operator-history
- **operator_operates_mine:** TRP, LLC → The Recycling Pit; 2001-11-28 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Mary E  Guthrie → The Recycling Pit; 2002-02-12 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Mary E  Guthrie → TRP, LLC; 2002-02-12 to current/open; source msha-controller-operator-history