# Relationship history for MSHA mine 1518935

Current hierarchy: **Mervin Anthony  Hamilton; Ben  Spurlock → Up the Creek Mining Group, LLC → Mine #1**

- 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:** Up the Creek Mining Group, LLC → Mine #1; 2005-10-28 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Ben  Spurlock et al → Mine #1; 2005-10-28 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Ben  Spurlock et al → Up the Creek Mining Group, LLC; 2005-10-28 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Mervin Anthony  Hamilton et al → Up the Creek Mining Group, LLC; 2005-10-28 to current/open; source msha-controller-operator-history