# Relationship history for MSHA mine 2602241

Current hierarchy: **Keith  Jones → Small Mine Development → ROSEBUD**

- 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:** Hecla Mining Company → ROSEBUD; 1950-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Ronald W  Guill → ROSEBUD; 1988-04-01 to 2011-01-27; source msha-controller-operator-history
- **controller_controls_mine:** Equinox Resources Ltd → ROSEBUD; 1989-10-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Equinox Resources Inc → ROSEBUD; 1993-11-01 to 1994-03-10; source msha-controller-operator-history
- **controller_controls_operator:** Equinox Resources Ltd → Equinox Resources Inc; 1993-11-01 to 1994-03-10; source msha-controller-operator-history
- **operator_operates_mine:** Hecla Mining Company → ROSEBUD; 1994-03-11 to 1996-12-04; source msha-controller-operator-history
- **controller_controls_operator:** Hecla Mining Company → Hecla Mining Company; 1994-03-11 to 1996-12-04; source msha-controller-operator-history
- **operator_operates_mine:** Rosebud Mining Company L L C → ROSEBUD; 1996-12-05 to 2026-07-12; source msha-controller-operator-history
- **controller_controls_mine:** Newmont Mining Company et al → ROSEBUD; 1996-12-05 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Newmont Mining Company et al → Rosebud Mining Company L L C; 1996-12-05 to 2026-07-12; source msha-controller-operator-history
- **controller_controls_operator:** Hecla Mining Co → Rosebud Mining Company L L C; 1996-12-05 to 2026-07-12; source msha-controller-operator-history
- **controller_controls_mine:** Keith  Jones → ROSEBUD; 2011-01-28 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Small Mine Development → ROSEBUD; 2026-07-13 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Keith  Jones → Small Mine Development; 2026-07-13 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Ronald W  Guill → Small Mine Development; 2026-07-13 to 2011-01-27; source msha-controller-operator-history