HomeMaineWestbrook › Mill Brook Preserve South Trailhead

Mill Brook Preserve South Trailhead

4.4 ★★★★☆ 37 Google reviews · Running trail in Westbrook, Maine · Hours vary

Runner's snapshot

Surface
Natural surface
Loop distance
1.5 mi
Shape
Loop
Shade
Not reported
Access
Not reported

Confirmed from Mill Brook Preserve South Trailhead'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.

Natural surface1.5 miLoopDog-friendlyFlat & fastHillyTrailhead parkingQuiet

What runners say about Mill Brook Preserve South Trailhead

Pulled from public reviews of this trail (37 of them) — the things people bring up again and again, in their own words. Nothing here is written by us.

🌾 quiet & peaceful 3 mentions

“It was so peaceful and serene.”

(Edited and more pics, as I've gone again!!) Really nice walking trails. The first time my boyfriend and I went walking out there, we found a "Lady Slipper", growing all by its lonesome, next to a tree. This is a beautiful, healthy, working forest.

★★★★★ — Erin , Jul 2023

Great hike for beginners who are looking for a good challenge. For intermediate hikers, it is about right; not to tough, but not quite at that beginner level that you feel it is too easy. There are quite a few sections of uphill hiking, so be prepared for that.

★★★★★ — Saul , Mar 2021

This is a great little hike! It has some hills but nothing too hard. It does get muddy. The hike is short. It's great to take the dogs or just get out of the house for a small walk in the woods. Be mindful that your dog has to be leashed at all times. 😊 It has ample parking and has never been busy.

★★★★★ — Scott , Mar 2022

Well maintained trails and plenty of them for variable length hikes. So nice to be in the woods, especially with the alewives running. Nice flat glades, as well as some well labeled more challenging hills. So happy for the switchbacks where needed

★★★★★ — Tim , May 2025

Excerpts from public Google reviews. Read all 37 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.

🐕 Dog-friendly 8 mentions

“Great walk for most families, ideal for dogs but not made for strollers or toddlers unless you want to carry your child part of the way.”

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Flat & fast 3 mentions

“For intermediate hikers, it is about right; not to tough, but not quite at that beginner level that you feel it is too easy.”

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⛰️ Hills / elevation 3 mentions

“Nice flat glades, as well as some well labeled more challenging hills.”

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🤫 Quiet / uncrowded 3 mentions

“It was so peaceful and serene.”

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🅿️ Trailhead parking

“😊 It has ample parking and has never been busy.”

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🌲 Natural surface / singletrack 3 mentions

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🔁 Loop trail

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Plan your run at Mill Brook Preserve South Trailhead

The practical stuff

  • AccessHours vary — hours are not posted for this trail, so check before an early or late run
  • SurfaceNatural surface — easiest on the joints and the most fun, but expect roots, rocks and mud after rain
  • Loop distance1.5 mi back to where you parked
  • ShadeNot reported. Assume some of it is exposed and carry water in summer.
  • At the trailheadparking — reported by runners
  • DogsWelcome, per reviewers. Leash rules vary by park — the trailhead sign is the authority.
  • Websiteprlt.org
  • Phone+1 207-536-8623
  • Social Instagram · Facebook

Where to find Mill Brook Preserve South Trailhead

Dolley Rd, Westbrook, ME 04092

Get directions

Running trails near Westbrook

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

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Sebago to the Sea Trail Section 4a

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Riverbank Park

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LitScenicDog-friendly

Scenic park featuring a playground, slides, swings, and kayak rentals.

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Mill Brook Preserve

4.2 ★★★★☆ 21 reviews

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6 miNatural surfaceDog-friendly

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Westbrook River Walk

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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.