Seattle, WA: Fifteenmile Creek

Explore the wilder side of Tiger Mountain State Forest on this 10-mile out-and-back that winds through lush forest, passes artifacts from a 1920's train wreck, and visits the banks of Fifteenmile Creek.

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Bypass the peaks in Tiger Mountain State Forest and explore the more remote recesses of the 13,500-acre working forest on this 10-mile out-and-back to Fifteenmile Creek. The hike begins on a logging road, but quickly veers onto the Iverson Railroad Trail; you’ll tromp past clear cut areas and enter a young forest of cedar and fir before pushing deeper into more mature stands. Roughly 2 miles in, turn right onto the logging road and follow it less than half a mile to the Tiger Mountain Trail.
After turning right onto Tiger Mountain Trail, hike north to a junction with Artifacts Trail. Bear right and visit the site of a 1920’s train wreck (look for the twisted metal remnants next to Holder Creek). A pile of rusted wheel sets and spring boxes sit on one side of the trail; mangled rails and moss-covered railroad ties lean haphazardly against several trees. At mile 3.2, merge back onto Tiger Mountain Trail at Karl’s Gap and follow it to the junction with Hobart Trail. Bear left at this Y-junction and descend to Fifteenmile Creek. Take in the picturesque scene before turning around and following the same route back to the trailhead.
-Mapped by Nathan and Jeremy Barnes, hikingwithmybrother.com

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Trail Facts

  • Distance: 16.1

Waypoints

FMC001

Location: 47.466564, -121.930692

From the East Tiger Mountain Trailhead, follow the logging road to the northeast.

FMC002

Location: 47.46869, -121.930829

Turn left at the junction with Iverson Railroad Trail. Ahead, hike through a clear cut area, enter a young forest of cedar and fir, then push deeper into more mature stands.

FMC003

Location: 47.468979, -121.935593

Turn right at the junction with a short side trail (leads to an old parking area).

FMC004

Location: 47.468692, -121.959009

Turn right and follow the logging road.

FMC005

Location: 47.471044, -121.964938

Turn right onto Tiger Mountain Trail.

FMC006

Location: 47.475803, -121.965033

Veer right onto Artifacts Trail. Ahead, pass the remnants of a 1920’s train wreck. A pile of rusted wheel sets and spring boxes sit on one side of the trail; mangled rails and moss-covered railroad ties lean haphazardly against several trees.

FMC007

Location: 47.476296, -121.964271

Turn left onto a small spur trail. Holder Creek flows on the right-hand side of the trail.

FMC008

Location: 47.477673, -121.966307

Continue straight at the junction with Karl’s Peak Trail.

FMC009

Location: 47.478181, -121.967224

Bear right onto Tiger Mountain Trail at Karl’s Gap.

FMC010

Location: 47.482677, -121.967836

Millan’s Crossing: Continue straight on Tiger Mountain Trail at the intersection with Middle Tiger Mountain Trail.

FMC011

Location: 47.491399, -121.970598

Turn left down Hobart Trail.

FMC012

Location: 47.493218, -121.971974

Take a break on the banks of Fifteenmile Creek at the Hobart-Middle Tiger Trail junction. When you’re ready, turn around and retrace your steps back to the trailhead.

Footbridge

Location: 47.47048, -121.937202

One of several footbridges on the Iverson Railroad Trail.

Fatal Train Crash

Location: 47.475981, -121.964571

Debris from the train crash.

Karl’s Gap

Location: 47.478444, -121.967101

Descent from Karl’s Gap.

Hal’s Cove

Location: 47.490297, -121.970901

Fifteenmile Creek

Location: 47.493218, -121.97191

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