At nearly 14,100 acres, Chino Hills State Park is one of the largest open spaces in this part of Southern California, and it sits right at the edge of the city. Rolling grassland ridges, oak-lined canyons and, in wet years, a wildflower bloom that draws hikers from well outside the county. Here's how to pick the right trail.
Bane Canyon Trailhead
The most popular entry point, with parking and access to a network of canyon and ridge trails. Good for both short loops and longer all-day routes.
Telegraph Canyon
A classic route that follows a seasonal creek through oak woodland before climbing onto open ridgeline. Shadier than most of the park in its lower stretches, which matters once the weather warms up.
Aliso Canyon
Quieter than Telegraph and Bane, with a gentler grade — a good option if you want the park's scenery without the crowds on a weekend morning.
Four Corners
The point deep in the park where several major trails meet. Reaching it from any trailhead is a serious full-day undertaking with real elevation gain — plan for exposure and carry more water than you think you need.
Wildflower season
In a good rain year, the ridgelines turn gold and purple with wildflowers from late February through April. It's the single best reason to visit the park and worth timing a trip around.
Practical notes
There is very little shade across most of the park's upper trails. Go early, especially from May through October. Mountain bikers and equestrians share most trails, so stay aware on blind curves.
The short version
Bane and Telegraph Canyons for a solid morning hike, Aliso for quiet, Four Corners only if you're ready for a long, exposed day — and check for wildflowers every spring.