# Relationship history for MSHA mine 3003134

Current hierarchy: **Pamela J  Harris → Keith L. Harris Co. Inc. → MUD POND 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:** Pamela J  Harris → MUD POND MINE; 1992-07-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Keith L. Harris Co. Inc. → MUD POND MINE; 1994-10-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Pamela J  Harris → Keith L. Harris Co. Inc.; 1994-10-01 to current/open; source msha-controller-operator-history