# Relationship history for MSHA mine 2401628

Current hierarchy: **Canyon Resources Corp → Cr Kendall Corp → KENDALL MINE**

- 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:** Geowest Inc → KENDALL MINE; 1981-06-01 to 1983-09-08; source msha-controller-operator-history
- **controller_controls_mine:** Geowest Inc → KENDALL MINE; 1981-06-01 to 1983-09-08; source msha-controller-operator-history
- **controller_controls_operator:** Geowest Inc → Geowest Inc; 1981-06-01 to 1983-09-08; source msha-controller-operator-history
- **operator_operates_mine:** Grayhall Resources Inc → KENDALL MINE; 1983-09-09 to 1987-12-03; source msha-controller-operator-history
- **controller_controls_mine:** Triad Investments Inc-North Moccasin Jv & N Moccas → KENDALL MINE; 1983-09-09 to 1987-12-03; source msha-controller-operator-history
- **controller_controls_operator:** Triad Investments Inc-North Moccasin Jv & N Moccas → Grayhall Resources Inc; 1983-09-09 to 1987-12-03; source msha-controller-operator-history
- **operator_operates_mine:** Cr Kendall Corp → KENDALL MINE; 1987-12-04 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Canyon Resources Corp → KENDALL MINE; 1987-12-04 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Canyon Resources Corp → Cr Kendall Corp; 1987-12-04 to current/open; source msha-controller-operator-history