# Relationship history for MSHA mine 1001672

Current hierarchy: **Scott  Laine; Terry  Weaver → Three Rivers Stone Corporation → Three Rivers Stone Corp**

- 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:** Magic Valley Stone Supply → Three Rivers Stone Corp; 1950-01-01 to 1993-06-15; source msha-controller-operator-history
- **controller_controls_mine:** Leonard  Owens → Three Rivers Stone Corp; 1950-01-01 to 1993-06-15; source msha-controller-operator-history
- **controller_controls_operator:** Leonard  Owens → Magic Valley Stone Supply; 1950-01-01 to 1993-06-15; source msha-controller-operator-history
- **operator_operates_mine:** Three Rivers Stone Corp → Three Rivers Stone Corp; 1993-06-16 to 1997-04-14; source msha-controller-operator-history
- **controller_controls_mine:** Joseph M  Dunkel → Three Rivers Stone Corp; 1993-06-16 to 1997-04-14; source msha-controller-operator-history
- **controller_controls_operator:** Joseph M  Dunkel → Three Rivers Stone Corp; 1993-06-16 to 1997-04-14; source msha-controller-operator-history
- **operator_operates_mine:** L & W Stone Corp → Three Rivers Stone Corp; 1997-04-15 to 2003-06-15; source msha-controller-operator-history
- **controller_controls_mine:** Scott  Laine Et Al → Three Rivers Stone Corp; 1997-04-15 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Scott  Laine Et Al → L & W Stone Corp; 1997-04-15 to 2003-06-15; source msha-controller-operator-history
- **controller_controls_operator:** Terry  Weaver Et Al → L & W Stone Corp; 1997-04-15 to 2003-06-15; source msha-controller-operator-history
- **operator_operates_mine:** Three Rivers Stone Corporation → Three Rivers Stone Corp; 2003-06-16 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Terry  Weaver Et Al → Three Rivers Stone Corp; 2003-06-16 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Terry  Weaver Et Al → Three Rivers Stone Corporation; 2003-06-16 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Scott  Laine Et Al → Three Rivers Stone Corporation; 2003-06-16 to current/open; source msha-controller-operator-history