# Relationship history for MSHA mine 2402416

Current hierarchy: **Michael W McClellan; Barbara K Fowler → Montana Natural Stone LLC → Montana Natural Stone LLC**

- 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:** Montana Natural Stone LLC → Montana Natural Stone LLC; 2005-08-01 to 2007-07-17; source msha-controller-operator-history
- **controller_controls_mine:** Michael W McClellan et al → Montana Natural Stone LLC; 2005-08-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Michael W McClellan et al → Montana Natural Stone LLC; 2005-08-01 to 2007-07-17; source msha-controller-operator-history
- **controller_controls_operator:** Barbara K Fowler et al → Montana Natural Stone LLC; 2005-08-01 to 2007-07-17; source msha-controller-operator-history
- **operator_operates_mine:** Montana Natural Stone LLC → Montana Natural Stone LLC; 2007-07-18 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Michael W McClellan et al → Montana Natural Stone LLC; 2007-07-18 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Michael W McClellan et al → Montana Natural Stone LLC; 2007-07-18 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Barbara K Fowler et al → Montana Natural Stone LLC; 2007-07-18 to current/open; source msha-controller-operator-history