# Relationship history for MSHA mine 2401079

Current hierarchy: **U S Silver & Gold Inc → Drumlummon Gold Corporation → Drumlummon 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:** Don  Busby → Drumlummon Mine; 1950-01-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Goldsil Mining & Milling Inc → Drumlummon Mine; 1981-11-01 to 2008-01-01; source msha-controller-operator-history
- **controller_controls_operator:** Don  Busby → Goldsil Mining & Milling Inc; 1981-11-01 to 2008-01-01; source msha-controller-operator-history
- **operator_operates_mine:** Blue Range Engineering Inc → Drumlummon Mine; 2008-01-02 to 2008-01-29; source msha-controller-operator-history
- **controller_controls_mine:** Larry Charles  Hoffman → Drumlummon Mine; 2008-01-02 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Larry Charles  Hoffman → Blue Range Engineering Inc; 2008-01-02 to 2008-01-29; source msha-controller-operator-history
- **operator_operates_mine:** Drumlummon Gold Mine LLC → Drumlummon Mine; 2008-01-30 to 2008-09-30; source msha-controller-operator-history
- **controller_controls_mine:** RX Gold and Silver Inc. → Drumlummon Mine; 2008-01-30 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** RX Gold and Silver Inc. → Drumlummon Gold Mine LLC; 2008-01-30 to 2008-09-30; source msha-controller-operator-history
- **operator_operates_mine:** RX Exploration Inc → Drumlummon Mine; 2008-10-01 to 2008-10-21; source msha-controller-operator-history
- **controller_controls_mine:** RX Gold and Silver Inc. → Drumlummon Mine; 2008-10-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** RX Gold and Silver Inc. → RX Exploration Inc; 2008-10-01 to 2008-10-21; source msha-controller-operator-history
- **operator_operates_mine:** New Millennium Mining Contracting LLC → Drumlummon Mine; 2008-10-22 to 2011-02-06; source msha-controller-operator-history
- **controller_controls_mine:** Ben P  Gunsinger → Drumlummon Mine; 2008-10-22 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Ben P  Gunsinger → New Millennium Mining Contracting LLC; 2008-10-22 to 2011-02-06; source msha-controller-operator-history
- **controller_controls_mine:** RX Gold and Silver Inc. → Drumlummon Mine; 2010-09-17 to 2012-10-01; source msha-controller-operator-history
- **operator_operates_mine:** Drumlummon Gold Corporation → Drumlummon Mine; 2011-02-07 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** RX Gold and Silver Inc. → Drumlummon Gold Corporation; 2011-02-07 to 2012-10-01; source msha-controller-operator-history
- **controller_controls_mine:** U S Silver & Gold Inc → Drumlummon Mine; 2012-10-02 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** U S Silver & Gold Inc → Drumlummon Gold Corporation; 2012-10-02 to current/open; source msha-controller-operator-history