# Relationship history for MSHA mine 0801411

Current hierarchy: **John Glenn  Robinson → LKRT LLC dba  Washington Loop Mine → Washington Loop Mine**

- 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:** LKRT LLC dba  Washington Loop Mine → Washington Loop Mine; 2016-04-21 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** John Glenn  Robinson → Washington Loop Mine; 2016-04-21 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** John Glenn  Robinson → LKRT LLC dba  Washington Loop Mine; 2016-04-21 to current/open; source msha-controller-operator-history