# Relationship history for MSHA mine 0301275

Current hierarchy: **Baskins J R → J R Baskins Sand & Gravel → Baskins Pit**

- 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:** Lavonne Adkisson Sand & Gravel → Baskins Pit; 1950-01-01 to 1980-05-28; source msha-controller-operator-history
- **controller_controls_mine:** Adkisson Lavonne & Wally → Baskins Pit; 1950-01-01 to 1980-05-28; source msha-controller-operator-history
- **controller_controls_operator:** Adkisson Lavonne & Wally → Lavonne Adkisson Sand & Gravel; 1950-01-01 to 1980-05-28; source msha-controller-operator-history
- **operator_operates_mine:** J R Baskins Sand & Gravel → Baskins Pit; 1980-05-29 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Baskins J R → Baskins Pit; 1980-05-29 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Baskins J R → J R Baskins Sand & Gravel; 1980-05-29 to current/open; source msha-controller-operator-history