The Chino Hills Spring Trail Series is a perfect way to take the first step into the exciting world of trail running. Join us and explore one of Orange County's premier natural open-space parks while you discover the trail runner in you. If you're already a seasoned trail runner, the Chino Hills Spring Trail Series is a great way to step up in distance and aim for your first trail marathon or 50K.
50 KM View course top times
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