# Relationship history for MSHA mine 4201987

Current hierarchy: **CCI  (Clyde Companies Inc) → Geneva Rock Products Inc → Pelican Point**

- 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:** Savage Industries Inc → Pelican Point; 1950-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** CCI  (Clyde Companies Inc) → Pelican Point; 1950-01-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Savage Rock Products → Pelican Point; 1986-10-01 to 1987-04-26; source msha-controller-operator-history
- **controller_controls_operator:** Savage Industries Inc → Savage Rock Products; 1986-10-01 to 1987-04-26; source msha-controller-operator-history
- **operator_operates_mine:** Larson Limestone Inc → Pelican Point; 1987-04-27 to 2001-09-30; source msha-controller-operator-history
- **controller_controls_mine:** Gerald M  Larson et al → Pelican Point; 1987-04-27 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Gerald M  Larson et al → Larson Limestone Inc; 1987-04-27 to 2001-09-30; source msha-controller-operator-history
- **operator_operates_mine:** Pelican Point Rock Products → Pelican Point; 2001-10-01 to 2004-12-31; source msha-controller-operator-history
- **controller_controls_mine:** Naviset Holdings Inc → Pelican Point; 2001-10-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Naviset Holdings Inc → Pelican Point Rock Products; 2001-10-01 to 2004-12-31; source msha-controller-operator-history
- **operator_operates_mine:** Rockwell Construction Products → Pelican Point; 2005-01-01 to 2006-05-04; source msha-controller-operator-history
- **controller_controls_mine:** Steve  Heaton → Pelican Point; 2005-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Steve  Heaton → Rockwell Construction Products; 2005-01-01 to 2006-05-04; source msha-controller-operator-history
- **operator_operates_mine:** Geneva Rock Products Inc → Pelican Point; 2006-05-05 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** CCI  (Clyde Companies Inc) → Geneva Rock Products Inc; 2006-05-05 to current/open; source msha-controller-operator-history