On Line Registration is Open
The Original event is coming back for the 10th year!
We will continue to Benefit/Support the Chino Hills State Park Discovery Center.
Description
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. The series kicks off with a 10k race, a standard road distance but with natural beauty all around. You'll see for yourself why trail running is one of the fastest growing sports. Trails offer so much more than asphalt and you're bound to be hooked. Later in the spring you'll be looking forward to tackling the 10 mile loop. Still want more? You only have to wait a few more weeks. The hilly 15 miler will take you deeper into the park. If that's not enough, just wait a bit and you'll get a chance to run 20 miles on these amazing trails. And that's perfect preparation for the trail marathon just a few weeks later. But the fun doesn't stop there. The series finale is a challenging 50K ultramarathon that will give ample opportunity to test your trail legs while enjoying the wildlife and native plants that abound in this beautiful park.
Come join us, whatever your favorite distance. Whether you opt for the 10K, the half-marathon in Spring, the 30K or the 50K in Fall, you will find a beautiful, well-marked course with ample aid and lots of post-race
Race Day Information (To Be Updated)
Race Day: November 15, 2025
Race Start: 6:30am (50K); 7:00am (30K)
Race Check-In: 5:30am (50K); 6:00am (30K)
Early Bib Pick Up Option:
TBA
Directions:
• From 57 Freeway exit at Lambert Road.
• Head east to Chino Hills State Park Discovery Center (pass Carbon Canyon Regional Park).
• Lambert Road becomes Carbon Canyon Road at Valencia. Continue about 1 miles to Chino Hills State Park parking lot.
• Race start/finish at the parking lot of the Discovery Center
• 4500 Carbon Canyon Road, Brea, CA 92823
• Prepare $10 for the parking fee
Other Parking Options:
• Once Chino Hills State Park Discovery Center Parking Lot is full, runners will be directing to park in Carbon Canyon Regional Park, far east lot next to the CHSP ($5.00 Entry Fee). [This will happen this year]
• Parking also available in Olinda Ranch Park, directly across from Carbon Canyon Regional Park. (Free but about 1 mile walk across Carbon Canyon Rd to the race start.) From Carbon Canyon Rd, turn left on Santa Fe Rd, left on Railway Ave, left on Cedarwood Dr.
Aid Stations:
1. Telegraph Canyon/Little Canyon (Water only station)
- Turns are the same for 30K and 50K
- 30K: 4.5 miles & 15.25 miles
- 50K: 4.5 miles & 27.5 miles
2. 4-Corners (Mid-Station)
- Turns are the same for 30K and 50K
- 30K: 7.5 miles & 13 miles, proceed down at Telegraph Canyon -> Finish
- 50K: 7.5 miles & 24 miles, proceed turn (R) at Northridge Trail -> (L) at Sycamore Trail -> (R) at Telegraph Canyon -> Finish
3. Bane Canyon (Drop Bag station)
- 30K: 10.25 miles; turn AROUND point
- 50K: will check in 3 times.
- 1st time: 10.25 miles; then turn RIGHT to Lower Aliso
- 2nd time: 16.5 miles; then go STRAIGHT to Upper Bane Ridge
- 3rd time: 21 miles; then turn RIGHT on Telegraph Canyon go to 4-Corners.
Cutoff time for 50K:
Bane Canyon - 1:00pm
4 Corner - 2:00pm
Finish line - 4:30pm
Event's current local time: 2:31 PM PT
