AMBLEWAY Wildest hikes

Mokelumne Wilderness

Lost Lake (west)–Frog Lake, 4 sights

15.7 mi · ▲ 2,776 ft · 6 hr 37 min

Lost Lake (west)–Frog Lake, 4 sights is a 15.7-mile out-and-back in Mokelumne Wilderness near Kirkwood, CA. The route passes Frog Lake before reaching Lost Lake (west) at the turnaround, 7.7 miles in. It climbs 2,776 ft, with sections as steep as 16% grade. It scores 55/100 on the Ambleway Wildness scale: backcountry feel.

Elevation

0 mi8,180 – 9,059 ft · steepest grade: 16%16.3 mi

Getting there

Trailhead: ALP122 38.69315, -120.00847
Nearest town Kirkwood, CA
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Directions

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Lost Lake (west)–Frog Lake, 4 sights

15.7 mi · ▲ 2,776 ft · 6 hr 37 min

Elevation 8,180–9,059 ft

Out & Back · Mokelumne Wilderness

Trailhead: ALP122 · 38.69315, -120.00847

Weather Aug 3: Clear, high 77°F / low 51° · precip 0% · wind 9 mph · sunrise 6:04 AM · sunset 8:10 PM

Toilets at the trailhead

  1. Start on ALP122, heading E.
  2. 0.4 miBear left, heading NE.
  3. 0.4 miTurn right onto Pacific Crest Trail, heading S.
  4. 2.1 miPass Frog Lake.
  5. 1.1 miBear left, heading N.
  6. 1.4 miTurn left, heading S.
  7. 0.3 miTurn right, heading E.
  8. 50 ftSharp right onto Forestdale Road, heading E.
  9. 0.6 miBear left onto Pacific Crest Trail, heading SE.
  10. 150 ftContinue straight onto Forestdale Road, heading E.
  11. 1.3 miTurn left onto Lost Lakes Road, heading NE.
  12. 200 ftBear right, heading E.
  13. 250 ftReach Lost Lake (west), then turn around and head back the way you came.
  14. 500 ftTurn right onto Forestdale Road, heading S.
  15. 1.3 miContinue straight onto Pacific Crest Trail, heading N.
  16. 100 ftBear right onto Forestdale Road, heading N.
  17. 0.1 miBear right, heading N.
  18. 0.5 miSharp left, heading N.
  19. 100 ftTurn left, heading NW.
  20. 0.3 miTurn right onto Pacific Crest Trail, heading NE.
  21. 1.4 miSharp left, heading NW.
  22. 2.2 miBear left, heading NE.
  23. 1 miTurn left, heading W.
  24. 0.4 miBear right onto ALP122, heading N.
  25. 0.4 miArrive 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/lost-lake-west-lost-lake-west-out-back-4-lakes-25-km

Trail surface

24% dirt76% unspecified

Weather

ClearTemperature 77°F51°
Precip0%Wind9 mphUV9Humidity27%
Hourly temperature
80°50°
Sunrise 6:04 AM12 AM3 AM9 AM12 PM3 PM6 PMSunset 8:10 PM
Tue 77°55°
Wed 77°55°
Thu 82°55°
Fri 82°57°
Sat 82°57°
Sun 82°55°

Sunset

The best sunset spot on this hike is 0.0 mi in (~2 min). Leave by 7:48 PM for the 8:10 PM sunset. Back at your car by 8:26 PM — 13 min before dark. Car visible from the viewpoint

More sunset hikes nearby

Good to know

  • Toilets at the trailhead

Other ways to reach this destination

More from ALP122 Trailhead

Hikes near Kirkwood, California