# Relationship history for MSHA mine 4703677

Current hierarchy: **North Cliff Corporation → Badger Mining Corporation → Alma Center**

- 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:** Timothy J  Wuest → Alma Center; 1950-01-01 to 2023-10-24; source msha-controller-operator-history
- **operator_operates_mine:** Goose Landing Sand Company, LLC → Alma Center; 2012-10-26 to 2014-01-08; source msha-controller-operator-history
- **controller_controls_mine:** James L  Hoffman et al → Alma Center; 2012-10-26 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** James L  Hoffman et al → Goose Landing Sand Company, LLC; 2012-10-26 to 2014-01-08; source msha-controller-operator-history
- **operator_operates_mine:** Goose Landing, LLC → Alma Center; 2014-01-09 to 2015-04-12; source msha-controller-operator-history
- **controller_controls_mine:** Northern Frac Proppants II, LLC et al → Alma Center; 2014-01-09 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Northern Frac Proppants II, LLC et al → Goose Landing, LLC; 2014-01-09 to 2015-04-12; source msha-controller-operator-history
- **operator_operates_mine:** Badger Mining Corporation → Alma Center; 2015-04-13 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Timothy J  Wuest → Badger Mining Corporation; 2015-04-13 to 2023-10-24; source msha-controller-operator-history
- **controller_controls_mine:** North Cliff Corporation → Alma Center; 2023-10-25 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** North Cliff Corporation → Badger Mining Corporation; 2023-10-25 to current/open; source msha-controller-operator-history