Castle Rock State Park, State park in San Mateo County, US.
Castle Rock State Park is a protected area in the Santa Cruz Mountains that covers forested slopes and rock formations. The landscape includes dense woods with redwood trees, oaks, and madrones, along with open clearings dotted with wildflowers.
The area became a state park in 1968 after local groups campaigned to protect this landscape. Before the official designation, people used the rocks and caves for shelter and navigation for centuries.
The name comes from a large sandstone formation that rises above the trees and can be seen from trails throughout the area. Visitors often climb onto this rock and enjoy views over the forested valleys below.
The park sits along Skyline Boulevard and offers access to trails that wind through forests and lead to viewpoints. Some sections are steep and require sturdy footwear, while other paths are manageable for families.
Some rock faces show old markings left by the first people who lived in these mountains. These signs remain visible even though centuries have passed and rain and wind have worn at them.
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