# Relationship history for MSHA mine 2901702

Current hierarchy: **Jim  Mc Nutt → Mc Nutt Construction → APACHE CANYON**

- 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:** James Hamilton Construction Company → APACHE CANYON; 1950-01-01 to 1987-10-06; source msha-controller-operator-history
- **controller_controls_mine:** Carroll  Hamilton  et al → APACHE CANYON; 1950-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Carroll  Hamilton  et al → James Hamilton Construction Company; 1950-01-01 to 1987-10-06; source msha-controller-operator-history
- **controller_controls_operator:** Charles E  Hamilton  et al → James Hamilton Construction Company; 1950-01-01 to 1987-10-06; source msha-controller-operator-history
- **operator_operates_mine:** Mc Nutt Construction → APACHE CANYON; 1987-10-07 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Jim  Mc Nutt → APACHE CANYON; 1987-10-07 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Jim  Mc Nutt → Mc Nutt Construction; 1987-10-07 to current/open; source msha-controller-operator-history