# Relationship history for MSHA mine 0901121

Current hierarchy: **Echols Mill Quarries LLC; Allgood Granite Products LLC; Bear Creek Minin → Savannah Valley Quarries, LLC → North Pyramid Stone LLC**

- 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:** Wayne  Adams  et al → North Pyramid Stone LLC; 1950-01-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Adams Granite Quarry LLC → North Pyramid Stone LLC; 1999-07-01 to 2014-01-01; source msha-controller-operator-history
- **controller_controls_operator:** Wayne  Adams  et al → Adams Granite Quarry LLC; 1999-07-01 to 2014-01-01; source msha-controller-operator-history
- **controller_controls_operator:** Stephen L  Adams  et al → Adams Granite Quarry LLC; 1999-07-01 to 2014-01-01; source msha-controller-operator-history
- **operator_operates_mine:** North Pyramid Stone LLC → North Pyramid Stone LLC; 2014-01-02 to 2020-12-31; source msha-controller-operator-history
- **controller_controls_mine:** James M  Rutherford Sr → North Pyramid Stone LLC; 2014-01-02 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** James M  Rutherford Sr → North Pyramid Stone LLC; 2014-01-02 to 2020-12-31; source msha-controller-operator-history
- **operator_operates_mine:** Savannah Valley Quarries, LLC → North Pyramid Stone LLC; 2021-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Allgood Granite Products LLC et al → North Pyramid Stone LLC; 2021-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Allgood Granite Products LLC et al → Savannah Valley Quarries, LLC; 2021-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Bear Creek Mining LLC et al → Savannah Valley Quarries, LLC; 2021-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Echols Mill Quarries LLC et al → Savannah Valley Quarries, LLC; 2021-01-01 to current/open; source msha-controller-operator-history