Tree at the edge of the Cougar Mountain park - panoramio.jpg
Krystof Hoder · CC BY 3.0

Harvey Manning Trail–Lost Beagle Trail, 6 sights is a 5.7-mile out-and-back in Cougar Mountain Regional Wildland Park near Issaquah, WA. It climbs 1,407 ft, with sections as steep as 18% grade. It scores 9/100 on the Ambleway Wildness scale: paved and peopled.

Elevation

0 mi367 – 1,473 ft · steepest grade: 18%6.1 mi

Getting there

Trailhead: Trearis Trail 47.53755, -122.06956
Nearest town Issaquah, WA

Directions

AMBLEWAYwww.ambleway.com

Harvey Manning Trail–Lost Beagle Trail, 6 sights

5.7 mi · ▲ 1,407 ft · 2 hr 36 min

Elevation 366–1,474 ft

Out & Back · Cougar Mountain Regional Wildland Park

Trailhead: Trearis Trail · 47.53755, -122.06956

Weather Aug 4: sunrise 5:51 AM · sunset 8:40 PM

Transit-accessible: Issaquah Transit Center - Bay 3 stop 713 m from the trailhead

  1. Start on Trearis Trail, heading N.
  2. 0.1 miBear right, heading N.
  3. 0.2 miTurn left onto Military Ridge Trail, heading N.
  4. 0.5 miBear left onto Red Cedars Trail, heading NW.
  5. 0.3 miTurn right onto Surprise Creek Trail, heading S.
  6. 0.5 miSharp right onto Shangri La Trail, heading S.
  7. 0.3 miTurn left onto Tibbetts Marsh Trail, heading W.
  8. 150 ftTurn right onto Harvey Manning Trail, heading NW.
  9. 150 ftSharp right onto Lost Beagle Trail, heading SW.
  10. 0.6 miTurn right onto Klondike Swamp Trail, heading SW.
  11. 200 ftTurn left onto Coyote Creek Trail, heading S.
  12. 0.3 miBear left onto Radio Peak Trail, heading S.
  13. 50 ftReach Military Ridge Trail, then turn around and head back the way you came.
  14. 50 ftBear right onto Coyote Creek Trail, heading S.
  15. 0.3 miTurn right onto Klondike Swamp Trail, heading N.
  16. 250 ftTurn left onto Lost Beagle Trail, heading N.
  17. 0.6 miSharp left onto Harvey Manning Trail, heading E.
  18. 150 ftTurn left onto Tibbetts Marsh Trail, heading E.
  19. 150 ftTurn right onto Shangri La Trail, heading E.
  20. 0.3 miSharp left onto Surprise Creek Trail, heading E.
  21. 0.5 miTurn left onto Red Cedars Trail, heading E.
  22. 0.3 miBear right onto Military Ridge Trail, heading N.
  23. 0.5 miTurn right, heading E.
  24. 0.2 miContinue straight onto Trearis Trail, heading E.
  25. 0.1 miArrive back at the trailhead.

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

Trail surface

51% dirt2% gravel47% unspecified

Weather

Sunrise 5:51 AMSunset 8:40 PM

Good to know

  • Transit-accessible: Issaquah Transit Center - Bay 3 stop 713 m from the trailhead

Other ways to reach this destination