# Relationship history for MSHA mine 0301632

Current hierarchy: **Ron  Coleman → Ron Coleman Mining Inc → FISHER MOUNTAIN**

- 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:** Crystal City Inc → FISHER MOUNTAIN; 1987-08-01 to 1993-12-07; source msha-controller-operator-history
- **controller_controls_mine:** Don  Burrow  et al → FISHER MOUNTAIN; 1987-08-01 to 2021-10-12; source msha-controller-operator-history
- **controller_controls_operator:** Don  Burrow  et al → Crystal City Inc; 1987-08-01 to 1993-12-07; source msha-controller-operator-history
- **controller_controls_operator:** Jeff  Burrow et al → Crystal City Inc; 1987-08-01 to 1993-12-07; source msha-controller-operator-history
- **controller_controls_mine:** Ron  Coleman → FISHER MOUNTAIN; 1988-04-06 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** West Crystal Mining Company → FISHER MOUNTAIN; 1993-12-08 to 1996-07-28; source msha-controller-operator-history
- **controller_controls_mine:** Kenneth J  Manley → FISHER MOUNTAIN; 1993-12-08 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Kenneth J  Manley → West Crystal Mining Company; 1993-12-08 to 1996-07-28; source msha-controller-operator-history
- **operator_operates_mine:** Ron Coleman Mining Inc → FISHER MOUNTAIN; 1996-07-29 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Ron  Coleman → Ron Coleman Mining Inc; 1996-07-29 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Jeff  Burrow → FISHER MOUNTAIN; 2021-10-13 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Jeff  Burrow → Crystal City Inc; 2021-10-13 to 1993-12-07; source msha-controller-operator-history