# Relationship history for MSHA mine 1001798

Current hierarchy: **Larry P  Scrivanich → Oakley Mountain Corp → Rock Garden**

- 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:** Mountain Quartzite Building Stone → Rock Garden; 1987-07-01 to 1997-05-07; source msha-controller-operator-history
- **controller_controls_mine:** Mountain Quartzite Building Stone → Rock Garden; 1987-07-01 to 1997-05-07; source msha-controller-operator-history
- **controller_controls_operator:** Mountain Quartzite Building Stone → Mountain Quartzite Building Stone; 1987-07-01 to 1997-05-07; source msha-controller-operator-history
- **operator_operates_mine:** Snake River Quartzite → Rock Garden; 1997-05-08 to 2002-05-27; source msha-controller-operator-history
- **controller_controls_mine:** Larry P  Scrivanich → Rock Garden; 1997-05-08 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Larry P  Scrivanich → Snake River Quartzite; 1997-05-08 to 2002-05-27; source msha-controller-operator-history
- **controller_controls_mine:** Larry P  Scrivanich → Rock Garden; 2002-04-15 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Scrivanich Natural Stone → Rock Garden; 2002-05-28 to 2011-06-06; source msha-controller-operator-history
- **controller_controls_operator:** Larry P  Scrivanich → Scrivanich Natural Stone; 2002-05-28 to 2011-06-06; source msha-controller-operator-history
- **controller_controls_mine:** Larry P  Scrivanich → Rock Garden; 2006-07-20 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Oakley Mountain Corp → Rock Garden; 2011-06-07 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Larry P  Scrivanich → Oakley Mountain Corp; 2011-06-07 to current/open; source msha-controller-operator-history