AMBLEWAY Wildest hikes
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Karen & Mike · CC BY 4.0
Mount Tamalpais Watershed

Lake Lagunitas–Concrete Pipe Road, 10 sights

12.2 mi · ▲ 3,085 ft · 5 hr 37 min

Lake Lagunitas–Concrete Pipe Road, 10 sights is a 12.2-mile out-and-back in Mount Tamalpais Watershed near Fairfax, CA. The route passes Lake Lagunitas and Lake Lagunitas. It climbs 3,085 ft, with sections as steep as 38% grade. It scores 70/100 on the Ambleway Wildness scale: backcountry feel.

Elevation

0 mi197 – 2,316 ft · steepest grade: 38%12.8 mi

Getting there

Trailhead: Bullfrog Fire Road 37.96638, -122.60510
Nearest town Fairfax, CA
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Directions

AMBLEWAYwww.ambleway.com

Lake Lagunitas–Concrete Pipe Road, 10 sights

12.2 mi · ▲ 3,085 ft · 5 hr 37 min

Elevation 199–2,315 ft

Out & Back · Mount Tamalpais Watershed

Trailhead: Bullfrog Fire Road · 37.96638, -122.60510

Weather Aug 3: Clear, high 95°F / low 56° · precip 0% · wind 11 mph · sunrise 6:16 AM · sunset 8:19 PM

Toilets at the trailhead · Parking lot at the trailhead

  1. Start at the trailhead, heading NE.
  2. 150 ftTurn right onto Alex Forman Trail, heading SE.
  3. 0.3 miBear left onto Shaver Grade Road, heading E.
  4. 50 ftContinue straight onto Alex Forman Trail, heading E.
  5. 200 ftContinue straight onto Shaver Grade Road, heading E.
  6. 0.2 miBear right onto Elliot Trail, heading E.
  7. 0.2 miTurn left onto Shaver Grade Road, heading N.
  8. 200 ftBear left onto Elliot Trail, heading N.
  9. 100 ftSharp right onto Shaver Grade Road, heading NE.
  10. 0.1 miContinue straight onto Concrete Pipe Road, heading S.
  11. 150 ftBear left onto Shaver Grade Road, heading SW.
  12. 0.4 miContinue straight onto Hidden Meadow Trail, heading E.
  13. 150 ftBear left onto Shaver Grade Road, heading NE.
  14. 0.4 miContinue straight onto Eldridge Grade Fire Road, heading SE.
  15. 0.7 miContinue straight onto Filter Plant Road, heading SE.
  16. 150 ftTurn left onto Eldridge Grade Fire Road, heading SE.
  17. 1.3 miContinue straight onto Lakeview Fire Road, heading SW.
  18. 0.2 miTurn left onto Pilot Knob Trail, heading NW.
  19. 50 ftTurn left onto Lakeview Fire Road, heading NW.
  20. 0.4 miPass Lake Lagunitas.
  21. 200 ftSharp left onto Lake Lagunitas Road, heading W.
  22. 0.3 miPass Lake Lagunitas.
  23. 250 ftTurn left onto Lagunitas Fire Trail, heading NW.
  24. 1 miBear right onto Northside Trail, heading S.
  25. 50 ftBear left onto Lagunitas Fire Trail, heading S.
  26. 0.2 miReach Lake Lagunitas, then turn around and head back the way you came.
  27. 0.2 miBear right onto Northside Trail, heading S.
  28. 50 ftBear left onto Lagunitas Fire Trail, heading S.
  29. 1 miTurn right onto Lake Lagunitas Road, heading NW.
  30. 0.3 miSharp right onto Lakeview Fire Road, heading E.
  31. 0.4 miTurn right onto Pilot Knob Trail, heading E.
  32. 50 ftTurn right onto Lakeview Fire Road, heading E.
  33. 0.2 miContinue straight onto Eldridge Grade Fire Road, heading E.
  34. 1.3 miTurn right onto Filter Plant Road, heading N.
  35. 150 ftContinue straight onto Eldridge Grade Fire Road, heading NW.
  36. 0.7 miContinue straight onto Shaver Grade Road, heading NE.
  37. 0.4 miBear right onto Hidden Meadow Trail, heading NW.
  38. 100 ftContinue straight onto Shaver Grade Road, heading NW.
  39. 0.4 miBear right onto Concrete Pipe Road, heading W.
  40. 150 ftContinue straight onto Shaver Grade Road, heading SW.
  41. 0.1 miSharp left onto Elliot Trail, heading NE.
  42. 50 ftBear right onto Shaver Grade Road, heading NE.
  43. 200 ftTurn right onto Elliot Trail, heading NE.
  44. 0.2 miBear left onto Shaver Grade Road, heading W.
  45. 0.2 miContinue straight onto Alex Forman Trail, heading SW.
  46. 250 ftContinue straight onto Shaver Grade Road, heading SW.
  47. 50 ftBear right onto Alex Forman Trail, heading SW.
  48. 0.3 miTurn left, heading NW.
  49. 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/colier-spring-bon-tempe-lake-out-back-3-lakes-24-km-41e0

Trail surface

43% dirt57% unspecified

Weather

ClearTemperature 95°F56°
Precip0%Wind11 mphUV8Humidity42%
Hourly temperature
95°55°
Sunrise 6:16 AM12 AM3 AM9 AM12 PM3 PM6 PMSunset 8:19 PM
Tue 85°55°
Wed 81°51°
Thu 93°53°
Fri 98°54°
Sat 99°51°
Sun 93°52°

Sunset

The best sunset spot on this hike is 5.6 mi in (~178 min). Leave by 5:00 PM for the 8:19 PM sunset. Back at your car by 11:14 PM, after dark — bring a headlamp.

More sunset hikes nearby

Good to know

  • Toilets at the trailhead
  • Parking lot at the trailhead

Other ways to reach this destination

More from Bullfrog Fire Road Trailhead

Hikes near Fairfax, California