Polar Bear Lake–Thunder Mountain Trail, 3 sights

4.4 mi · ▲ 1,640 ft · 2 hr 17 min

Polar Bear Lake–Thunder Mountain Trail, 3 sights is a 4.4-mile out-and-back near Alpine Meadows, CA. The route reaches Polar Bear Lake at the turnaround, 2.1 miles in. It climbs 1,640 ft, with sections as steep as 19% grade, and is mostly dirt. It scores 85/100 on the Ambleway Wildness scale: genuinely wild.

Elevation

0 mi6,395 – 8,058 ft · steepest grade: 19%5.2 mi

Getting there

Trailhead: Unnamed 39.19319, -120.23945
Nearest town Alpine Meadows, CA

Directions

AMBLEWAYwww.ambleway.com

Polar Bear Lake–Thunder Mountain Trail, 3 sights

4.4 mi · ▲ 1,640 ft · 2 hr 17 min

Elevation 6,395–8,058 ft

Out & Back

Trailhead: 39.19319, -120.23945

Weather Aug 4: sunrise 6:05 AM · sunset 8:11 PM

  1. Start at the trailhead, heading E.
  2. 100 ftSharp right, heading SW.
  3. 0.4 miBear left, heading SW.
  4. 0.3 miBear right onto Thunder Mountain Trail, heading SW.
  5. 0.7 miBear right, heading SW.
  6. 50 ftTurn right, heading SW.
  7. 100 ftTurn left onto Western States Trail, heading W.
  8. 0.5 miBear left onto Top of Siberia Lift to Intersect with Western States, heading SW.
  9. 400 ftTurn right, heading N.
  10. 0.1 miBear right, heading S.
  11. 50 ftContinue straight onto Western States Trail, heading S.
  12. 350 ftBear right, heading NW.
  13. 300 ftReach Polar Bear Lake, then turn around and head back the way you came.
  14. 250 ftBear right, heading S.
  15. 450 ftBear left onto Top of Siberia Lift to Intersect with Western States, heading NW.
  16. 0.2 miBear right onto Western States Trail, heading SE.
  17. 0.5 miTurn right, heading S.
  18. 100 ftTurn left, heading NE.
  19. 50 ftBear left, heading NE.
  20. 0.3 miContinue straight onto Thunder Mountain Trail, heading SE.
  21. 0.5 miBear left, heading N.
  22. 0.3 miBear right, heading NE.
  23. 0.4 miSharp left, heading NE.
  24. 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

79% dirt21% unspecified

Weather

Sunrise 6:05 AMSunset 8:11 PM

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