Chino Hills State Park
Chino Hills State Park is Southern California’s urban wilderness escape—14,102 acres of rolling hills, oak woodlands, and grassy meadows forming a vital wildlife corridor in the heart of the Los Angeles Basin. With over 90 miles of trails for hiking, mountain biking, and horseback riding, plus spectacular spring wildflower displays, this park offers a surprising natural refuge just minutes from millions of people.
📢 Trail Closure Policy
- After Rain: All trails close for 48+ hours following 0.25″+ rainfall
- Red Flag Warnings: Park closes during extreme fire danger
- Trail Info: Call 951-780-6222 for current conditions
Park Overview
| Park Details | Information |
|---|---|
| 📐 Size | 14,102 acres |
| 🥾 Trails | 90+ miles |
| 🦎 Corridor | Puente-Chino Hills biological corridor |
| 🏙️ Significance | Critical urban wildlife refuge |
Trail System – 90+ Miles
| Activity | Popular Trails |
|---|---|
| 🥾 Hiking | Telegraph Canyon, South Ridge, Upper Aliso Canyon, Bane Canyon Road |
| 🚴 Mountain Biking | Telegraph Canyon, North Ridge, South Ridge, Bane Ridge |
| 🐴 Equestrian | Multiple trails + dedicated staging area |
| Dog Rules | Details |
|---|---|
| ✅ Allowed | Paved roads, campground |
| ❌ Not Allowed | Dirt trails |
Spring Wildflowers (March–May)
| Wildflower Season | Details |
|---|---|
| 📅 Peak | March – May (depending on rainfall) |
| 🌼 Colors | Yellow, orange, purple blooms |
| 📍 Best Areas | Hillsides and canyons |
| 🚫 Rules | No picking wildflowers! |
Rolling M Ranch Campground
| Campground Info | Details |
|---|---|
| ⛺ Standard Sites | 20 campsites (tent & RV) |
| 🐴 Equestrian Sites | 3 sites |
| 🔥 Amenities | Tables, fire rings, grates |
| 🚿 Facilities | Flush toilets, drinking water |
| Reservations | Details |
|---|---|
| 📅 Advance | Up to 6 months ahead |
| 📞 Phone | 1-800-444-PARK (7275) |
| ⚠️ July 2026 | New policies apply; fees may be non-refundable |
Park Hours
| Season | Hours |
|---|---|
| ❄️ Winter (Oct 1 – early Apr) | 8 AM – 5 PM |
| ☀️ Summer (Apr – Sep 30) | 8 AM – 7 PM |
Frequently Asked Questions
Why are trails closed after rain?
Chino Hills State Park has high clay content soil that becomes extremely muddy and slippery when wet. All trails close for at least 48 hours after 0.25 inches or more of rain to protect both visitor safety and prevent trail damage. This is strictly enforced—check trail status at 951-780-6222 before visiting after any precipitation.
When is the best time to see wildflowers?
Spring wildflower displays typically peak between March and May, depending on winter rainfall. After wet winters, the hillsides transform into spectacular carpets of yellow, orange, and purple blooms. The best viewing is usually in late March to mid-April. Remember: picking wildflowers is prohibited.
Can I bring my dog on the trails?
Dogs are NOT allowed on dirt trails at Chino Hills State Park to protect wildlife in this critical biological corridor. However, dogs are permitted on paved roads and in the campground. This policy helps preserve the Puente-Chino Hills wildlife corridor that connects fragmented habitats.
Is there camping at Chino Hills State Park?
Yes! The Rolling M Ranch Campground offers 20 standard campsites for tents and RVs, plus 3 equestrian sites. Amenities include picnic tables, fire rings, flush toilets, and drinking water. Reservations can be made up to 6 months in advance through ReserveCalifornia.com or by calling 1-800-444-PARK.
What is the Puente-Chino Hills Wildlife Corridor?
Chino Hills State Park is a crucial component of the Puente-Chino Hills biological corridor—a chain of connected open spaces that allows wildlife to move between fragmented habitats in the heavily urbanized Los Angeles Basin. This 31-mile corridor supports mountain lions, deer, coyotes, and numerous other species that need large territories to survive.
🌿 Urban Wilderness Escape
Explore 90+ miles of trails through rolling hills, catch spring wildflowers in bloom, and experience a vital wildlife corridor in the heart of Southern California. Visit the official Chino Hills State Park website for trail conditions and camping reservations.
