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Big Dalton Wilderness Park

4.6 ★★★★★ 5 Google reviews · Running trail in Glendora, 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 Big Dalton Wilderness 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.

Big Dalton Wilderness Park — running trail in Glendora, CA, photo 1
Open 24h

What runners say about Big Dalton Wilderness Park

Pulled from public reviews of this trail (5 of them) — the things people bring up again and again, in their own words. Nothing here is written by us.

Great spot. Choice of trails from this spot. Can get a workout on Mystic trail or chill on BDC trail. Shaded most of the trail. With water flow & wildlife. Got surprised by some young deer smashing out of the bush to get a drink from the creek. Then disappearing back in the bush. Recommend for families or for excersie.

★★★★★ — Tee , Jan 2026

Nice areas. Many trails off of Big Dalton Canyon Rd. Water in creek is rushing by. so be careful. Wildlife too...bears, mtn lions, coyotes and snakes. didnt see any this day though.

★★★★★ — Jacqueline , Mar 2023

Excerpts from public Google reviews. Read all 5 reviews →

Plan your run at Big Dalton Wilderness 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.

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

Posted hours for the park or trailhead. Gates and parking lots often close earlier than the trail itself, and seasonal hours change — worth a check before a pre-dawn or after-dark run.

Where to find Big Dalton Wilderness Park

1803 Big Dalton Canyon Rd, Glendora, CA 91741

Get directions

Running trails near Glendora

Other trails within easy driving distance — useful when this one is flooded, gated, or just not the run you had in mind today.

Big Dalton Canyon Trail

4.8 ★★★★★ 98 reviews

Glendora, CA

ShadedScenicDog-friendly

Shaded, family-friendly hiking area along a creek in the San Gabriel Mountains.

under a mile away

Big Dalton Wilderness Area

4.7 ★★★★★ 110 reviews

Glendora, CA

ShadedScenicDog-friendly

Park, campground and hiking area offering views of the valley, plus picnic facilities.

under a mile away

Mystic Canyon Trail

4.8 ★★★★★ 6 reviews

Glendora, CA

under a mile away

Start of Punk Out Trail

4.8 ★★★★★ 13 reviews

Glendora, CA

under a mile away

Upper Colby

4.8 ★★★★★ 71 reviews

Glendora, CA

2 miScenic

Hiking and biking area featuring sunflowers and other plants, plus a riverside.

under a mile away

Lower Monroe Truck Trail

4.8 ★★★★★ 130 reviews

Glendora, CA

4 miNatural surfaceShadedScenic

Outdoor recreation area with hiking trails, mountain biking, and plenty of water.

under a mile away

All running trails in Glendora, CA →

Nearby towns

Listing verified July 2026 from public records, the trail's own website and runner reviews. Trail conditions change — paths flood, gates close at dusk, and shaded woods stay muddy for days after rain. Something out of date? Report a correction. Manage this trail? Send us the details — it is free.