|Castle Rocks State Park|
IUCN category V (protected landscape/seascape)
A spring in Castle Rocks State Park
|Location||Cassia County, Idaho, United States|
|Nearest city||Burley, Idaho|
CASTLE ROCKS STATE PARK Latitude and Longitude:
|Area||1,692 acres (6.85 km2) |
|Max. elevation||6,540 ft (1,990 m) |
|Min. elevation||5,620 ft (1,710 m) |
|Designation||Idaho state park|
|Administrator||Idaho Department of Parks and Recreation|
|Website||Castle Rocks State Park|
Castle Rocks State Park is a public recreation area encompassing 1,692 acres (685 ha) in Cassia County, Idaho, United States.  The state park is located in Big Cove at the base of Cache Peak in the Albion Mountains. It is next to the Albion Division of Sawtooth National Forest and about 1.5 miles (2.4 km) from the border of City of Rocks National Reserve.
In 2000, the Castle Rock Ranch Acquisition Act was passed, and money from the Conservation and Access funds were used to purchase the private ranch at Castle Rocks. Following the purchase by the National Park Service, the lands were transferred to the state of Idaho:
After the acquisition, the NPS exchanged the property with the Idaho Department of Parks and Recreation (IDPR) for other lands adjacent to existing NPS properties. Since May 25, 2003, the IDPR has provided park facilities and managed recreation at Castle Rocks. 
The park was expanded by 200 acres (81 ha) in 2007.
- "Castle Rocks State Park". Idaho Parks and Recreation. Retrieved October 18, 2017.
- "Final Supplementary Rules for the Castle Rocks Land Use Plan Amendment Area, Idaho". Federal Register. October 28, 2015. Retrieved October 18, 2017.