Chino Hills State Park Trails Close After Rainfall and During Fire Danger
Chino Hills State Park Trails Close After Rainfall and During Fire Danger
US · Published Sep 7, 2026
Chino Hills State Park in California enforces temporary closures of its trails and park areas following specific weather conditions.
According to the park's guidelines, trails are closed for at least 48 hours after rainfall exceeding one-quarter inch due to the high clay content in the soil, which creates slippery and hazardous conditions.

Impact & Risks

The closures primarily affect hikers, bicyclists, and equestrians who frequent the park's trails. The high clay content in the soil can make trails dangerously slippery, increasing the risk of accidents. Additionally, the park's closure during Red Flag Warnings is a precautionary measure to mitigate the risk of wildfires, which can pose severe threats to both visitors and the surrounding environment. These closures also help preserve the integrity of the trails, preventing damage caused by use during adverse conditions.

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