# Relationship history for MSHA mine 0405259

Current hierarchy: **Beatrice I  Sanders → Treasure Canyon Enterprises Inc → TREASURE CANYON LODE MINES**

- Valid-time bounds: inclusive, date granularity
- Null end: open-ended in the upstream history row; not independent proof of present control
- Transaction-time observation: 2026-10-17T05:35:58.500035+00:00

## Valid-time edges

- **operator_operates_mine:** Treasure Canyon Lode Mines → TREASURE CANYON LODE MINES; 1994-08-01 to 1995-04-24; source msha-controller-operator-history
- **controller_controls_mine:** Beatrice I  Sanders et al → TREASURE CANYON LODE MINES; 1994-08-01 to 1995-04-24; source msha-controller-operator-history
- **controller_controls_operator:** Beatrice I  Sanders et al → Treasure Canyon Lode Mines; 1994-08-01 to 1995-04-24; source msha-controller-operator-history
- **operator_operates_mine:** K A S Enterprises Resources Division → TREASURE CANYON LODE MINES; 1995-04-25 to 1996-06-01; source msha-controller-operator-history
- **controller_controls_mine:** Karl A  Spang Sr → TREASURE CANYON LODE MINES; 1995-04-25 to 1996-06-01; source msha-controller-operator-history
- **controller_controls_operator:** Karl A  Spang Sr → K A S Enterprises Resources Division; 1995-04-25 to 1996-06-01; source msha-controller-operator-history
- **operator_operates_mine:** Treasure Canyon Enterprises Inc → TREASURE CANYON LODE MINES; 1996-06-02 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Beatrice I  Sanders et al → TREASURE CANYON LODE MINES; 1996-06-02 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Beatrice I  Sanders et al → Treasure Canyon Enterprises Inc; 1996-06-02 to current/open; source msha-controller-operator-history