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Mystery Spring

4.1 ★★★★☆ 34 Google reviews · Running trail in Westford, Massachusetts · Open 24 hours

Runner's snapshot

Surface
Crushed gravel
Distance
Not reported
Shape
Not reported
Shade
Not reported
Access
Open 24 hours

Confirmed from Mystery Spring'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.

Mystery Spring — running trail in Westford, MA, photo 1
Mystery Spring — running trail in Westford, MA, photo 2
Mystery Spring — running trail in Westford, MA, photo 3
Mystery Spring — running trail in Westford, MA, photo 4
Mystery Spring — running trail in Westford, MA, photo 5
Crushed gravelOpen 24hStroller / ADATrailhead parking

What runners say about Mystery Spring

Pulled from public reviews of this trail (34 of them) — the things people bring up again and again, in their own words. Nothing here is written by us.

This is a short hike. There are two trails the seem to end suddenly. It's very over grown as you get closer to the water

★★★★☆ — Heather , Jul 2020

A morning walk in the woods before the heat wave started. I parked in the tiny dirt lot (2 cars max, highly suggest backing in) off Tadmuck Road, just after passing under I-495.

★★★★☆ — David , Jun 2025

A very short trail. Only 0.2 mile to the spring and the same back. There are two more trails connected to this one and a couple other entrances.

★★★★☆ — David , May 2023

Lots of poison ivy so stay on the trail. Trails were well described by the website and easy to follow.

★★★★☆ — Melissa , Jun 2025

Excerpts from public Google reviews. Read all 34 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.

🅿️ Trailhead parking 3 mentions

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🪨 Crushed gravel / limestone

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♿ Stroller / ADA accessible

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Plan your run at Mystery Spring

The practical stuff

  • AccessOpen 24 hours — no gate to beat, so a 5am or a 10pm run both work
  • SurfaceCrushed gravel — the rail-trail classic: softer than asphalt, still smooth enough for tempo 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 trailheadparking — reported by runners
  • Stroller / wheelchairReported as smooth and step-free enough for a running stroller or a chair.
  • Websitewestfordconservationtrust.org
  • 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

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 Mystery Spring

46 Tadmuck Rd, Westford, MA 01886

Get directions

Running trails near Westford

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

Peace Trail

4.4 ★★★★☆ 8 reviews

Westford, MA

under a mile away

Burns Hill Conservation Area Trailhead

4.7 ★★★★★ 3 reviews

Westford, MA

Loop

1.2 miles away

Cider Mill Pond Conservation Area

4.3 ★★★★☆ 19 reviews

Westford, MA

ShadedScenic

1.2 miles away

Lyberty Way trails

2 ★★☆☆☆ 1 reviews

Westford, MA

1.3 miles away

Tom Paul Trail

4.8 ★★★★★ 10 reviews

Westford, MA

1.3 miles away

Prospect Hill Wildlife Sanctuary

4.5 ★★★★★ 2 reviews

Westford, MA

Loop

1.4 miles away

All running trails in Westford, MA →

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.