Home › California › Diamond Bar › Carlton J. Peterson Park
Carlton J. Peterson Park
4.5 ★★★★★ 410 Google reviews · Running trail in Diamond Bar, California · Posted hours
Runner's snapshot
- Surface
- Not reported
- Distance
- Not reported
- Shape
- Not reported
- Shade
- Tree cover
- Access
- Posted hours
Confirmed from Carlton J. Peterson Park's own listing, the park or land manager's website, and runner reviews. Blank cells mean we could not verify that fact — we would rather say "not reported" than invent one. There is no Easy / Moderate / Hard rating on this page on purpose: a one-word difficulty score tells you nothing about whether a trail suits your run. Surface, distance, shade and hours do.
Public park with a playground, pool, and picnic tables, plus softball and baseball fields.
What runners say about Carlton J. Peterson Park
“Restrooms are clean, grass looks and is well maintained, and there is overall cleanliness throughout the park.”
“My family and I like to come here in the evenings to take our dogs out for a walk when we do not feel like going all the way to Pantera Park.”
Very nice park in Diamond Bar located jus off the 60fwy, two very large baseball field that is also used for a soccer field,, a walking path that goes around the whole park, shade trees and canopy with picnic tables and barbecues, also has a nice skate park and clean bathrooms,,a padded children's playground for the…
Quiet and serene. I love to walk laps around the entire perimeter. Current photos do not do it justice . The skate park is amazing as well. Almost some times feels like a hidden Oasis, Esp. If u Poke-Go! 3gyms plus stops, nice farming !
Nice park to walk and play. Its being maintained by the city well. Has BBQ s and benches for a picnic and also playground for the kiddos. has two baseball fields, two batting cages, skate park next to it,walk up to the top enjoy the view.
Good spot to walk and be outdoors. Lots of other amenities...batting cages, 2 baseball/soft ball fields, play ground, skate park. Well maintained by the city.
Trail conditions & character
“My family and I like to come here in the evenings to take our dogs out for a walk when we do not feel like going all the way to Pantera Park.”
“Restrooms are clean, grass looks and is well maintained, and there is overall cleanliness throughout the park.”
“Waiting for construction to be done with parking lot but other than that its great”
Plan your run at Carlton J. Peterson Park
The practical stuff
- AccessPosted hours — posted hours below; park gates sometimes close earlier than the listing says
- DistanceNot reported. Trail systems often quote total path mileage rather than a single loop, so measure the route you actually want before you drive out.
- ShadeRunners describe real tree cover here — it makes a summer afternoon workable
- LightingRunners report lights on the path — useful for pre-dawn and after-work miles. Lighting and opening hours are separate things, so check both.
- At the trailheadparking, restrooms — reported by runners
- DogsWelcome, per reviewers. Leash rules vary by park — the trailhead sign is the authority.
- Websitediamondbarca.gov
- Phone+1 909-839-7070
Hours
| Monday | 6:30 am–10 pm |
| Tuesday | 6:30 am–10 pm |
| Wednesday | 6:30 am–10 pm |
| Thursday | 6:30 am–10 pm |
| Friday | 6:30 am–10 pm |
| Saturday | 6:30 am–10 pm |
| Sunday | 6:30 am–10 pm |
Running trails near Diamond Bar
Other trails within easy driving distance — useful when this one is flooded, gated, or just not the run you had in mind today.
Country Crossing Park
4.5 ★★★★★ 272 reviews
This park with trees offers a walking trail, sports field, playground & picnic spots.
Pantera Park Trail
4.7 ★★★★★ 46 reviews
Area featuring kid-friendly hikes, a dog park, and basketball.
Phillips Ranch Park
4.5 ★★★★★ 248 reviews
Clean and popular dog park featuring gazebos plus swings, slides and picnic tables.
Steep Canyon Trail
4.7 ★★★★★ 462 reviews
Looping hiking route featuring steep slopes and views of the surrounding hills.
Sycamore Canyon Park
4.7 ★★★★★ 931 reviews
City land with a playground, ball field, BBQ grill, picnic tables, exercise stations & nature trail.