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Los Alamos Park
4.4 ★★★★☆ 89 Google reviews · Running trail in Fountain Valley, California · Open 24 hours
Runner's snapshot
- Surface
- Not reported
- Distance
- Not reported
- Shape
- Not reported
- Shade
- Not reported
- Access
- Open 24 hours
Confirmed from Los Alamos 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.
Large park at the mouth of Drum Canyon with trails for biking & hiking, ball fields & a playground.
What runners say about Los Alamos Park
“Clean and small park, with a couple of swings and one basketball playground.”
“Quiet park inside neighborhood with picnic benches, BBQ grill, playground, restrooms, drinking fountain, mature trees & open green areas.”
This is a great Park. I bring my kids here for picnics all the time. There's plenty of open space for whatever you like whether it's games or just to run around. There is also a basketball court that is usually open. My girls love this park for the tire swing. It's what keeps us coming back.
The little park outside the library is a favorite place to walk for my dog and me. He enjoys sniffing new things and I like to visit the war memorials. When my boys were young, the park was a good place to blow off some steam after visiting the library and being quiet and respectful :) We used to homeschool some of…
I take my budster to this park on weekends. It's a clean park with ample room for lg n sm dogs. People r friendly n all dogs r leashed. A nice place for sports n a picnic. In close proximity to the library, civic ctr., n Mile Sq Pk.
Clean and small park, with a couple of swings and one basketball playground. Very adequate to the area, a sanctuary during a morning walk, properly maintained. I would give it the fifth star if it had a restroom and a fountain.
Trail conditions & character
“The little park outside the library is a favorite place to walk for my dog and me.”
“Quiet park inside neighborhood with picnic benches, BBQ grill, playground, restrooms, drinking fountain, mature trees & open green areas.”
“Quiet park inside neighborhood with picnic benches, BBQ grill, playground, restrooms, drinking fountain, mature trees & open green areas.”
“Quiet park inside neighborhood with picnic benches, BBQ grill, playground, restrooms, drinking fountain, mature trees & open green areas.”
Plan your run at Los Alamos Park
The practical stuff
- AccessOpen 24 hours — no gate to beat, so a 5am or a 10pm run both work
- 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.
- ShadeNot reported. Assume some of it is exposed and carry water in summer.
- At the trailheadrestrooms, water — reported by runners
- DogsWelcome, per reviewers. Leash rules vary by park — the trailhead sign is the authority.
- Websitefountainvalley.gov
- Social Instagram · Facebook
Hours
| Monday | Open 24 hours |
| Tuesday | Open 24 hours |
| Wednesday | Open 24 hours |
| Thursday | Open 24 hours |
| Friday | Open 24 hours |
| Saturday | Open 24 hours |
| Sunday | Open 24 hours |
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