# Relationship history for MSHA mine 2402450

Current hierarchy: **Hecla Mining Company → Montanore Minerals Corp → Montanore Project**

- 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:** Mines Management, Inc. → Montanore Project; 2006-06-06 to 2012-03-26; source msha-controller-operator-history
- **controller_controls_mine:** Glenn M.  Dobbs et al → Montanore Project; 2006-06-06 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Glenn M.  Dobbs et al → Mines Management, Inc.; 2006-06-06 to 2012-03-26; source msha-controller-operator-history
- **operator_operates_mine:** Montanore Minerals Corp → Montanore Project; 2012-03-27 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Glenn M.  Dobbs et al → Montanore Project; 2012-03-27 to 2012-03-27; source msha-controller-operator-history
- **controller_controls_operator:** Glenn M.  Dobbs et al → Montanore Minerals Corp; 2012-03-27 to 2012-03-27; source msha-controller-operator-history
- **controller_controls_mine:** Mines Management Inc → Montanore Project; 2012-03-28 to 2016-09-14; source msha-controller-operator-history
- **controller_controls_operator:** Mines Management Inc → Montanore Minerals Corp; 2012-03-28 to 2016-09-14; source msha-controller-operator-history
- **controller_controls_mine:** Hecla Mining Company → Montanore Project; 2016-09-15 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Hecla Mining Company → Montanore Minerals Corp; 2016-09-15 to current/open; source msha-controller-operator-history