Redmond Watershed Preserve

Siler's Mill Trail & Tolt Pipeline Trail

16.1 mi · ▲ 1,454 ft · 6 hr 6 min

Siler's Mill Trail & Tolt Pipeline Trail is a 16.1-mile out-and-back in Redmond Watershed Preserve near Woodinville, WA. It climbs 1,454 ft, with sections as steep as 21% grade, and is mostly dirt. It scores 1/100 on the Ambleway Wildness scale: paved and peopled.

Elevation

0 mi30 – 574 ft · steepest grade: 21%17.2 mi

Getting there

Trailhead: Sammamish River Trail 47.73887, -122.15130
Nearest town Woodinville, WA

Directions

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Siler's Mill Trail & Tolt Pipeline Trail

16.1 mi · ▲ 1,454 ft · 6 hr 6 min

Elevation 29–575 ft

Out & Back · Redmond Watershed Preserve

Trailhead: Sammamish River Trail · 47.73887, -122.15130

Weather Sep 20: sunrise 6:53 AM · sunset 7:12 PM

Parking lot at the trailhead

  1. Start at the trailhead, heading SE.
  2. 0.1 miContinue straight onto Sammamish River Trail, heading SE.
  3. 150 ftContinue straight onto Tolt Pipeline Trail, heading SE.
  4. 0.9 miTurn right, heading E.
  5. 4.3 miTurn right, heading SE.
  6. 0.6 miTurn right onto Redmond Ridge Trail, heading S.
  7. 0.2 miTurn right onto Collin Creek Trail, heading SE.
  8. 0.7 miContinue straight onto Siler's Mill Trail, heading W.
  9. 1.3 miTurn right onto Pipeline Regional Trail, heading NW.
  10. 50 ftReach Tolt Pipeline Trail, then turn around and head back the way you came.
  11. 50 ftTurn left onto Siler's Mill Trail, heading W.
  12. 1.3 miContinue straight onto Collin Creek Trail, heading N.
  13. 0.7 miTurn left onto Redmond Ridge Trail, heading E.
  14. 0.2 miTurn left, heading E.
  15. 0.6 miTurn left, heading W.
  16. 300 ftContinue straight onto Tolt Pipeline Trail, heading NW.
  17. 4.3 miTurn left, heading W.
  18. 0.9 miContinue straight onto Sammamish River Trail, heading W.
  19. 50 ftArrive back at the trailhead.

Each distance is the walk from the previous step. Tap a step for a map of its junction.

Trail surface

62% dirt10% gravel3% paved25% unspecified

Weather

Sunrise 6:53 AMSunset 7:12 PM

Sunset

The best sunset spot on this hike is 1.6 mi in (~55 min). Leave by 5:57 PM for the 7:12 PM sunset. Back at your car by 8:08 PM, after dark — bring a headlamp.

More sunset hikes nearby

Good to know

  • Parking lot at the trailhead

Other ways to reach this destination

More from Sammamish River Trail Trailhead