HomeCaliforniaGlendora › Colby Trail, Glendora, CA

Colby Trail, Glendora, CA

4.6 ★★★★★ 299 Google reviews · Running trail in Glendora, California · Open 24 hours

Runner's snapshot

Surface
Not reported
Distance
Not reported
Shape
Not reported
Shade
Tree cover
Access
Open 24 hours

Confirmed from Colby Trail, Glendora, CA'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.

Open 24hShadedScenicDog-friendlyHillyTrailhead parking

Picturesque area offering a short hiking/jogging path to a hilltop for expansive views.

What runners say about Colby Trail, Glendora, CA

Pulled from public reviews of this trail (299 of them) — the things people bring up again and again, in their own words. Nothing here is written by us.

well-maintained 4 mentions

“Plenty of parking in nearby neighborhood, clean and quiet, a lot of matured trees.”

🏞️ beautiful scenery 5 mentions

“Beautiful shady oak trees, not to many other people which is nice, plenty of street parking on weekdays.”

🌳 shaded & cool 5 mentions

“Beautiful shady oak trees, not to many other people which is nice, plenty of street parking on weekdays.”

👟 good for all levels 3 mentions

“It's an easy trail for a morning walk, not crowded.”

Really Simple hikes with amazing views. I came on a Monday around 9am with my dogs Very few people which for me is good because i was able to get my dogs of leash. The rain has made everything green and it's beautiful right now.

★★★★★ — Isidro , Mar 2023

Great trail and easy. One way up & one way down. If you wanna a tougher workout take a side trail and back up the way you came to the original trail.

★★★★★ — Motu , Jun 2025

Great elevation of 800ft. Rough step selections of the trail in the upper portions have you believing your also done when you are just getting to the next hurdle. A hydration pack 2.0L is required to complete to entire trail and make it back down hydrated.

★★★★★ — David , Apr 2018

Nice short trail. Not too difficult but enough up hill to make you feel as if you are hiking. Not usually too crowded, and has good views overlooking the city.

★★★★★ — Allie , May 2023

Excerpts from public Google reviews. Read all 299 reviews →

Trail conditions & character

What this trail is actually like underfoot and overhead, taken from its own listing and from reviews. Each one links to every other trail with the same character. Busy or quiet is reported as a plain fact, not a plus or a minus — a runner heading out alone at dawn often wants company on the path, and someone running intervals wants an empty one.

🏞️ Scenic views 15 mentions

“Beautiful shady oak trees, not to many other people which is nice, plenty of street parking on weekdays.”

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⛰️ Hills / elevation 11 mentions

“Lush, green hills with plenty of wildflowers and sprawling views of Glendora await!”

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🅿️ Trailhead parking 7 mentions

“Beautiful shady oak trees, not to many other people which is nice, plenty of street parking on weekdays.”

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🌳 Shaded / tree cover 5 mentions

“Beautiful shady oak trees, not to many other people which is nice, plenty of street parking on weekdays.”

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🐕 Dog-friendly 5 mentions

“I came on a Monday around 9am with my dogs Very few people which for me is good because i was able to get my dogs of leash.”

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Plan your run at Colby Trail, Glendora, CA

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.
  • ShadeRunners describe real tree cover here — it makes a summer afternoon workable
  • At the trailheadparking — reported by runners
  • DogsWelcome, per reviewers. Leash rules vary by park — the trailhead sign is the authority.
  • Websiteci.glendora.ca.us
  • Phone(626) 852-4869

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 Colby Trail, Glendora, CA

1018 Colby Trail Motorway, 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.

George Manooshian Park

4.5 ★★★★★ 116 reviews

Glendora, CA

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Park with hiking trails, along with tennis and baseball fields, plus a clean track.

under a mile away

Upper Colby

4.8 ★★★★★ 71 reviews

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2 miScenic

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

under a mile away

Big Dalton Wilderness Park

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under a mile away

Mystic Canyon Trail

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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.

1.0 miles away

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.

1.0 miles 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.