# Relationship history for MSHA mine 0504716

Current hierarchy: **James  Lennon; Brad  Small; Mark  Small → Castle Rock Rock LLC → Castle Rock Rock 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

- **operator_operates_mine:** Plum Creek Sand & Gravel → Castle Rock Rock LLC; 2001-08-01 to 2002-05-13; source msha-controller-operator-history
- **controller_controls_mine:** Ted  Jordon → Castle Rock Rock LLC; 2001-08-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Ted  Jordon → Plum Creek Sand & Gravel; 2001-08-01 to 2002-05-13; source msha-controller-operator-history
- **operator_operates_mine:** Douglas County Sand & Gravel → Castle Rock Rock LLC; 2002-05-14 to 2003-08-26; source msha-controller-operator-history
- **controller_controls_mine:** Jim  Misken  et al → Castle Rock Rock LLC; 2002-05-14 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Jim  Misken  et al → Douglas County Sand & Gravel; 2002-05-14 to 2003-08-26; source msha-controller-operator-history
- **controller_controls_operator:** Doug  Doulin  et al → Douglas County Sand & Gravel; 2002-05-14 to 2003-08-26; source msha-controller-operator-history
- **operator_operates_mine:** Castle Rock Rock Inc → Castle Rock Rock LLC; 2003-08-27 to 2024-07-08; source msha-controller-operator-history
- **controller_controls_mine:** John J  Miner → Castle Rock Rock LLC; 2003-08-27 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** John J  Miner → Castle Rock Rock Inc; 2003-08-27 to 2024-07-08; source msha-controller-operator-history
- **operator_operates_mine:** Castle Rock Rock LLC → Castle Rock Rock LLC; 2024-07-09 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Mark  Small et al → Castle Rock Rock LLC; 2024-07-09 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Mark  Small et al → Castle Rock Rock LLC; 2024-07-09 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** James  Lennon et al → Castle Rock Rock LLC; 2024-07-09 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Brad  Small et al → Castle Rock Rock LLC; 2024-07-09 to current/open; source msha-controller-operator-history