AMBLEWAY Wildest hikes
The Mountain Theater on Mt. Tamalpais was built in the 1930s by the Civilian Conservation Corps out of natural stone, and can seat 3750 people for plays and concerts. A spectacular view is visible just above the stage - panoramio.jpg
Richard Wood · CC BY-SA 3.0
Mount Tamalpais Watershed

Colier Spring–Phoenix Lake, 13 sights

15.4 mi · ▲ 3,188 ft · 6 hr 44 min

Colier Spring–Phoenix Lake, 13 sights is a 15.4-mile out-and-back in Mount Tamalpais Watershed near Stinson Beach, CA. The route passes Colier Spring, Lake Lagunitas and Phoenix Lake before reaching Phoenix Lake at the turnaround, 7.7 miles in. It climbs 3,188 ft, with sections as steep as 32% grade. It scores 63/100 on the Ambleway Wildness scale: backcountry feel.

Elevation

0 mi184 – 2,300 ft · steepest grade: 32%16.0 mi

Getting there

Trailhead: Old Mine Trail 37.91064, -122.61211
Nearest town Stinson Beach, CA
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Directions

AMBLEWAYwww.ambleway.com

Colier Spring–Phoenix Lake, 13 sights

15.4 mi · ▲ 3,188 ft · 6 hr 44 min

Elevation 184–2,299 ft

Out & Back · Mount Tamalpais Watershed

Trailhead: Old Mine Trail · 37.91064, -122.61211

Weather Aug 3: Clear, high 92°F / low 73° · precip 0% · wind 3 mph · sunrise 6:16 AM · sunset 8:19 PM

Toilets at the trailhead · Parking lot at the trailhead

  1. Start on Old Mine Trail, heading E.
  2. 450 ftBear left, heading E.
  3. 0.2 miContinue straight onto Rock Spring Trail, heading N.
  4. 1.5 miTurn left onto Old Railroad Grade Fire Road, heading E.
  5. 0.7 miTurn left onto Miller Trail, heading NE.
  6. 0.3 miTurn right onto Collier Spring Trail, heading W.
  7. 0.3 miBear right onto Northside Trail, heading N.
  8. 100 ftContinue straight onto Lower Northside Trail, heading NW.
  9. 50 ftPass Colier Spring.
  10. 50 ftContinue straight onto Collier Trail, heading NW.
  11. 1.1 miPass Lake Lagunitas.
  12. 0.3 miSharp right onto Lakeview Fire Road, heading SE.
  13. 0.4 miTurn right onto Pilot Knob Trail, heading E.
  14. 50 ftTurn right onto Lakeview Fire Road, heading E.
  15. 0.2 miContinue straight onto Eldridge Grade Fire Road, heading E.
  16. 1.3 miTurn right onto Filter Plant Road, heading NW.
  17. 150 ftContinue straight onto Eldridge Grade Fire Road, heading NW.
  18. 0.7 miSharp right onto Shaver Grade Road, heading NW.
  19. 0.1 miContinue straight onto Gertrude Ord Trail, heading W.
  20. 50 ftContinue straight onto Shaver Grade Road, heading W.
  21. 0.1 miPass Phoenix Lake.
  22. 0.4 miPass Phoenix Lake.
  23. 300 ftReach Colier Spring, then turn around and head back the way you came.
  24. 0.5 miContinue straight onto Gertrude Ord Trail, heading W.
  25. 50 ftContinue straight onto Shaver Grade Road, heading W.
  26. 0.1 miSharp left onto Eldridge Grade Fire Road, heading W.
  27. 0.7 miContinue straight onto Filter Plant Road, heading S.
  28. 150 ftTurn left onto Eldridge Grade Fire Road, heading SE.
  29. 1.3 miContinue straight onto Lakeview Fire Road, heading S.
  30. 0.2 miTurn left onto Pilot Knob Trail, heading NW.
  31. 50 ftTurn left onto Lakeview Fire Road, heading NW.
  32. 0.4 miSharp left onto Lake Lagunitas Road, heading W.
  33. 1.5 miContinue straight onto Lower Northside Trail, heading S.
  34. 50 ftContinue straight onto Northside Trail, heading S.
  35. 100 ftBear left onto Collier Spring Trail, heading S.
  36. 0.3 miTurn left onto Miller Trail, heading S.
  37. 0.3 miTurn right onto Old Railroad Grade Fire Road, heading SE.
  38. 0.7 miTurn right onto Rock Spring Trail, heading SW.
  39. 1.6 miBear right onto Old Mine Trail, heading S.
  40. 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/mount-tamalpais-west-point-colier-spring-out-back-5-lakes-16-km-24a0

Trail surface

58% dirt1% gravel41% unspecified

Weather

ClearTemperature 92°F73°
Feels like79°Precip0%Wind3 mphUV8Humidity28%
Hourly temperature
95°70°
Sunrise 6:16 AM12 AM3 AM9 AM12 PM3 PM6 PMSunset 8:19 PM
Tue 81°65°
Wed 67°50°
Thu 66°48°
Fri 70°47°
Sat 70°46°
Sun 62°46°

Sunset

The best sunset spot on this hike is 0.1 mi in (~3 min). Leave by 7:56 PM for the 8:19 PM sunset. Back at your car by 8:35 PM — 12 min before dark. Car visible from the viewpoint

More sunset hikes nearby

Good to know

  • Toilets at the trailhead
  • Parking lot at the trailhead

Other ways to reach this destination

More from Old Mine Trail Trailhead

Hikes near Stinson Beach, California