# Relationship history for MSHA mine 3610069

Current hierarchy: **Raymond  Martin → GLR Mining Inc → GLR #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

- **controller_controls_mine:** Raymond  Martin et al → GLR #1; 1986-02-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** GLR Mining Inc → GLR #1; 2013-06-17 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Raymond  Martin et al → GLR Mining Inc; 2013-06-17 to current/open; source msha-controller-operator-history