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Black Diamond Trail

4.8 ★★★★★ 152 Google reviews · Running trail in Black Diamond, Washington · Open 24 hours

Runner's snapshot

Surface
Natural surface
Distance
Not reported
Shape
Not reported
Shade
Not reported
Access
Open 24 hours

Confirmed from Black Diamond Trail'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 surfaceOpen 24hDog-friendlyMile markers

What runners say about Black Diamond Trail

Pulled from public reviews of this trail (152 of them) — the things people bring up again and again, in their own words. Nothing here is written by us.

🏞️ beautiful scenery 3 mentions

“So many trails, all beautiful and scenic.”

🪧 well-marked 2 mentions

“All the trails are well marked and if you are using the Trail Forks app it makes it that much easier to track where your at.”

This park has a ton of MTB trails to offer! All the trails are well marked and if you are using the Trail Forks app it makes it that much easier to track where your at. All in all a great place to start if you are just getting into mountain biking!

★★★★★ — Cory , Jul 2021

Love hiking and walking in here. Some of the trails are named and are are being marked. Its easy to get list in here. Your GPS will not work. It will send you in circles. There is a large gravel parking area here.

★★★★★ — Sharon , Jun 2018

One of Chanelles favorite places to walk. She met her first little snake here

★★★★★ — Melinda , Apr 2024

So many trails, all beautiful and scenic. Something for everyone, deep forest paths, sunlit walks and big grassy pastures. And a creek for splashing paws! Note that there are many off leash dogs in the park and some have limited or poor recall, so if you take your pups be prepared for playful encounters.

★★★★★ — Chris , Aug 2022

Excerpts from public Google reviews. Read all 152 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 3 mentions

“Note that there are many off leash dogs in the park and some have limited or poor recall, so if you take your pups be prepared for playful encounters.”

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🌲 Natural surface / singletrack 2 mentions

“A bit of roots and rocks but great rolling hills for building your mountain biking technical skills!”

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📏 Mile markers 2 mentions

“All the trails are well marked and if you are using the Trail Forks app it makes it that much easier to track where your at.”

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Plan your run at Black Diamond Trail

The practical stuff

  • AccessOpen 24 hours — no gate to beat, so a 5am or a 10pm run both work
  • SurfaceNatural surface — easiest on the joints and the most fun, but expect roots, rocks and mud after rain
  • 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.
  • DogsWelcome, per reviewers. Leash rules vary by park — the trailhead sign is the authority.

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 Black Diamond Trail

Rte 66, Black Diamond, WA 98010

Get directions

Running trails near Black Diamond

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

Black Diamond Natural Area

4.7 ★★★★★ 391 reviews

Black Diamond, WA

Natural surfaceDog-friendly

Hiker and cyclist favorite with various trails featuring gap jumps and berms, as well as a creek.

under a mile away

Summit Ridge

4.4 ★★★★☆ 46 reviews

Black Diamond, WA

under a mile away

Henry's Ridge Natural Area

4.7 ★★★★★ 302 reviews

Maple Valley, WA

20 miNatural surfaceScenic

Hundreds of acres of forestland with over 10 miles of trails for hiking, jogging & mountain biking.

under a mile away

Henry's Ridge Open Space

4.7 ★★★★★ 99 reviews

Maple Valley, WA

Dog-friendly

Gnome-themed open space boasting miles of winding trails for walking and mountain biking.

1.1 miles away

Lake Sawyer Regional Park

4.2 ★★★★☆ 233 reviews

Maple Valley, WA

Natural surfaceScenicDog-friendly

Park with a lake for boating and fishing, plus wooded trails.

1.2 miles away

Summit Park Off Leash Dog Park

4.3 ★★★★☆ 73 reviews

Maple Valley, WA

ShadedDog-friendly

Dog-friendly wooded area with a trail, plus a kids' playground and a basketball court.

1.4 miles away

All running trails in Black Diamond, WA →

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.