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Big Dalton Wilderness Area
4.7 ★★★★★ 110 Google reviews · Running trail in Glendora, California · Hours vary
Runner's snapshot
- Surface
- Not reported
- Distance
- Not reported
- Shape
- Not reported
- Shade
- Tree cover
- Access
- Not reported
Confirmed from Big Dalton Wilderness Area'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.
Park, campground and hiking area offering views of the valley, plus picnic facilities.
What runners say about Big Dalton Wilderness Area
“There's a nice shaded picnic area and a restroom which was clean and during the three times I've visited on weekends and weekdays, there weren't that much people.”
“Very gorgeous area for a leisurely walk in the woods anytime of the year.”
“There's a nice shaded picnic area and a restroom which was clean and during the three times I've visited on weekends and weekdays, there weren't that much people.”
“There are a handful of trails, ones that take you steeply up the nearby slopes for terrific valley views or a more flat and calm one adjacent to the creek.”
I love big Dalton Dam! I love it so much I got married there 😄 The scenery, greenery, wildlife, the trails are well-kept, and the people who hike there are friendly. I take my children there at least once a week 👍👍
I went there a few times. This trail is so good and beautiful. In the evening it is better for hiking. There is no rush, calm and cool place. Parking and entering are free and much.
Very gorgeous area for a leisurely walk in the woods anytime of the year. There are a handful of trails, ones that take you steeply up the nearby slopes for terrific valley views or a more flat and calm one adjacent to the creek.
There are a lot of different of hiking routes in this place definitely recommend it
Trail conditions & character
“Very gorgeous area for a leisurely walk in the woods anytime of the year.”
“There's a nice shaded picnic area and a restroom which was clean and during the three times I've visited on weekends and weekdays, there weren't that much people.”
“There's a nice shaded picnic area and a restroom which was clean and during the three times I've visited on weekends and weekdays, there weren't that much people.”
“You can bring your dogs, they just need to be on a leash.”
“Very peace full and not too many people come by because parking is limited.”
Plan your run at Big Dalton Wilderness Area
The practical stuff
- AccessHours vary — hours are not posted for this trail, so check before an early or late run
- 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, restrooms, water — reported by runners
- DogsWelcome, per reviewers. Leash rules vary by park — the trailhead sign is the authority.
- Websitecityofglendora.org
- Phone(626) 914-8228
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
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Big Dalton Wilderness Park
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Mystic Canyon Trail
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Lower Monroe Truck Trail
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Top of Punk Out Trail
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Hiking area with a trail leading to a hilltop viewpoint.