| Castle Rock State Park | |
|---|---|
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&sq=Google&lang=en&file=File:USA_Illinois_location_map.svg)  Map of the U.S. state of Illinois showing the location of Castle Rock State Park &sq=Google&lang=en&file=File:Usa_edcp_location_map.svg) Castle Rock State Park (Illinois) (the United States) | |
| Location | Ogle County, Illinois, United States |
| Nearest city | Oregon, Illinois |
| Coordinates | 41°58′08″N 89°22′55″W / 41.96889°N 89.38194°W |
| Area | 2,000 acres (809 ha) |
| Established | 1921 |
| Governing body | Illinois Department of Natural Resources |
Castle Rock State Park is an Illinois state park on 2,000 acres (809 ha) in Ogle County, Illinois, United States. A portion of the land was acquired by the "Friends of Our Native Landscape" in 1921.
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