AMBLEWAY Wildest hikes
Sammamish River.jpg
Tradnor · CC BY-SA 3.0
Marymoor Park

Marymoor Viewpoint & Reflecting Pond via Sammamish River Trail

15.6 mi · ▲ 906 ft · 5 hr 39 min

Marymoor Viewpoint & Reflecting Pond via Sammamish River Trail is a 15.6-mile out-and-back in Marymoor Park near Cottage Lake, WA. The route passes Reflecting Pond before reaching Marymoor Viewpoint at the turnaround, 7.8 miles in. It climbs 906 ft, with sections as steep as 16% grade. It scores 12/100 on the Ambleway Wildness scale: paved and peopled.

Elevation

0 mi23 – 541 ft · steepest grade: 16%17.8 mi

Getting there

Trailhead: Brook Trails Trail #5 47.73461, -122.08964
Nearest town Cottage Lake, WA
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Directions

AMBLEWAYwww.ambleway.com

Marymoor Viewpoint & Reflecting Pond via Sammamish River Trail

15.6 mi · ▲ 906 ft · 5 hr 39 min

Elevation 23–540 ft

Out & Back · Marymoor Park

Trailhead: Brook Trails Trail #5 · 47.73461, -122.08964

Weather Jul 18: Overcast, high 74°F / low 58° · precip 1% · wind 3 mph · sunrise 5:29 AM · sunset 9:01 PM

Transit-accessible: Avondale Rd NE & NE 146th Way stop 608 m from the trailhead

  1. Start on Brook Trails Trail #5, heading E.
  2. 0.1 miTurn left onto Brook Trails Trail #3, heading N.
  3. 0.1 miTurn left onto Tolt Pipeline Trail, heading W.
  4. 2.8 miSharp left, heading SW.
  5. 250 ftBear left, heading SW.
  6. 300 ftContinue straight onto Sammamish River Trail, heading SE.
  7. 1.5 miBear left, heading S.
  8. 0.4 miBear left, heading S.
  9. 250 ftTurn right, heading S.
  10. 50 ftTurn left, heading S.
  11. 0.4 miTurn left, heading SW.
  12. 50 ftTurn right, heading SW.
  13. 0.5 miTurn right onto PSE Trail, heading SE.
  14. 50 ftTurn left, heading SE.
  15. 150 ftPass Reflecting Pond.
  16. 0.4 miContinue straight onto Sammamish River Trail, heading SE.
  17. 50 ftTurn left, heading SE.
  18. 300 ftTurn left, heading SE.
  19. 50 ftTurn right, heading SE.
  20. 0.1 miBear left, heading SE.
  21. 50 ftBear right, heading SE.
  22. 0.1 miSharp right onto Redmond Central Connector Trail, heading S.
  23. 250 ftTurn left, heading S.
  24. 0.4 miContinue straight onto Marymoor Connector Trail, heading S.
  25. 0.3 miTurn left, heading S.
  26. 0.3 miReach Marymoor Viewpoint, then turn around and head back the way you came.
  27. 1 miTurn right onto Redmond Central Connector Trail, heading NW.
  28. 250 ftSharp left, heading N.
  29. 150 ftContinue straight onto Sammamish River Trail, heading N.
  30. 450 ftBear left, heading N.
  31. 0.1 miTurn left, heading N.
  32. 300 ftBear left, heading N.
  33. 0.5 miTurn right onto PSE Trail, heading N.
  34. 50 ftTurn left, heading N.
  35. 0.4 miContinue straight onto Sammamish River Trail, heading N.
  36. 0.1 miTurn left, heading N.
  37. 50 ftTurn right, heading N.
  38. 0.4 miTurn right, heading N.
  39. 50 ftTurn left, heading N.
  40. 150 ftBear left, heading N.
  41. 2 miBear right, heading N.
  42. 250 ftSharp right onto Tolt Pipeline Trail, heading N.
  43. 2.8 miTurn right onto Brook Trails Trail #3, heading E.
  44. 0.1 miTurn right onto Brook Trails Trail #5, heading E.
  45. 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 map, photos and weather for this hike: www.ambleway.com/hikes/marymoor-viewpoint-reflecting-pond-out-back-3-lakes-25-km-7604

Trail surface

42% dirt19% paved14% gravel7% grass18% unspecified

Good to know

  • Transit-accessible: Avondale Rd NE & NE 146th Way stop 608 m from the trailhead

Weather

OvercastTemperature 74°F58°
Precip1%Wind3 mphUV7Humidity76%
Hourly temperature
75°55°
Sunrise 5:29 AM12 AM3 AM9 AM12 PM3 PM6 PMSunset 9:01 PM
Sun 78°53°
Mon 85°54°
Tue 91°59°
Wed 95°61°
Thu 92°60°
Fri 75°57°

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