# Relationship history for MSHA mine 0901139

Current hierarchy: **Joseph H  Anderson → Junction City Mining Company, L.L.C. → Heath 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:** Junction City Mining Company, L.L.C. → Heath Quarry; 2001-05-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Joseph H  Anderson et al → Heath Quarry; 2001-05-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Joseph H  Anderson et al → Junction City Mining Company, L.L.C.; 2001-05-01 to current/open; source msha-controller-operator-history