# Relationship history for MSHA mine 1002121

Current hierarchy: **Black Mountain Resources Ltd → ABM Mining Corp. → Idaho Lakeview Mill**

- 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:** Carol  Stephan et al → Idaho Lakeview Mill; 1950-01-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Shoshone Silver/Gold Mining → Idaho Lakeview Mill; 2007-07-13 to 2012-07-29; source msha-controller-operator-history
- **controller_controls_operator:** Carol  Stephan et al → Shoshone Silver/Gold Mining; 2007-07-13 to 2012-07-29; source msha-controller-operator-history
- **operator_operates_mine:** ABM Mining Corp. → Idaho Lakeview Mill; 2012-07-30 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Black Mountain Resources Ltd → Idaho Lakeview Mill; 2012-07-30 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Black Mountain Resources Ltd → ABM Mining Corp.; 2012-07-30 to current/open; source msha-controller-operator-history