# Relationship history for MSHA mine 2602607

Current hierarchy: **Jerry Dale  Jones; Rowdy Ellis  Olds → JCR Development LLC → JCR Crusher @ RNMC**

- 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:** JCR Development LLC → JCR Crusher @ RNMC; 2007-05-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Rowdy Ellis  Olds  et al → JCR Crusher @ RNMC; 2007-05-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Rowdy Ellis  Olds  et al → JCR Development LLC; 2007-05-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Jerry Dale  Jones  et al → JCR Development LLC; 2007-05-01 to current/open; source msha-controller-operator-history