Marin Islands from Mount Tam, February 2026.JPG
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Alex Forman Trail–Concrete Pipe Road, 10 sights is a 14.3-mile out-and-back in Mount Tamalpais Watershed near Murray Park, CA. It climbs 3,913 ft, with sections as steep as 30% grade. It scores 64/100 on the Ambleway Wildness scale: backcountry feel.

Elevation

0 mi197 – 2,100 ft · steepest grade: 30%15.0 mi

Getting there

Trailhead: Hoo-Koo-E-Koo Fire Road 37.92220, -122.56830
Nearest town Murray Park, CA

Directions

AMBLEWAYwww.ambleway.com

Alex Forman Trail–Concrete Pipe Road, 10 sights

14.3 mi · ▲ 3,913 ft · 6 hr 43 min

Elevation 199–2,100 ft

Out & Back · Mount Tamalpais Watershed

Trailhead: Hoo-Koo-E-Koo Fire Road · 37.92220, -122.56830

Weather Aug 3: Clear, high 94°F / low 64° · precip 0% · wind 4 mph · sunrise 6:16 AM · sunset 8:19 PM

Drinking water at the trailhead

  1. Start on Hoo-Koo-E-Koo Fire Road, heading N.
  2. 0.3 miTurn right onto Wheeler Trail, heading NE.
  3. 0.5 miContinue straight onto Eldridge Grade Fire Road, heading NE.
  4. 0.2 miSharp left onto Indian Fire Trail, heading SW.
  5. 0.1 miBear right, heading W.
  6. 150 ftBear right onto Eldridge Grade Fire Road, heading NW.
  7. 0.3 miBear right onto East Peak Fire Trail, heading NW.
  8. 0.1 miContinue straight onto Northside Trail, heading NW.
  9. 150 ftContinue straight onto East Peak Fire Trail, heading N.
  10. 1 miTurn right onto Lakeview Fire Road, heading NW.
  11. 0.3 miTurn right onto Pilot Knob Trail, heading NE.
  12. 50 ftTurn right onto Lakeview Fire Road, heading NE.
  13. 0.2 miContinue straight onto Eldridge Grade Fire Road, heading SE.
  14. 1.3 miTurn right onto Filter Plant Road, heading N.
  15. 150 ftContinue straight onto Eldridge Grade Fire Road, heading SW.
  16. 0.7 miContinue straight onto Shaver Grade Road, heading W.
  17. 0.4 miBear right onto Hidden Meadow Trail, heading NW.
  18. 100 ftContinue straight onto Shaver Grade Road, heading NW.
  19. 0.4 miBear right onto Concrete Pipe Road, heading NE.
  20. 150 ftContinue straight onto Shaver Grade Road, heading NW.
  21. 0.1 miSharp left onto Elliot Trail, heading W.
  22. 0.3 miBear left onto Shaver Grade Road, heading SW.
  23. 0.2 miSharp right onto Alex Forman Trail, heading NW.
  24. 100 ftContinue straight onto Shaver Grade Road, heading NW.
  25. 50 ftContinue straight onto Alex Forman Trail, heading NW.
  26. 200 ftContinue straight onto Shaver Grade Road, heading NW.
  27. 50 ftBear right onto Alex Forman Trail, heading NW.
  28. 0.5 miReach Wheeler Trail, then turn around and head back the way you came.
  29. 0.5 miBear left onto Shaver Grade Road, heading S.
  30. 50 ftContinue straight onto Alex Forman Trail, heading S.
  31. 200 ftContinue straight onto Shaver Grade Road, heading SW.
  32. 50 ftContinue straight onto Alex Forman Trail, heading S.
  33. 100 ftSharp left, heading S.
  34. 300 ftContinue straight onto Shaver Grade Road, heading SE.
  35. 0.2 miBear right onto Elliot Trail, heading E.
  36. 0.3 miSharp right onto Shaver Grade Road, heading E.
  37. 0.1 miContinue straight onto Concrete Pipe Road, heading SE.
  38. 150 ftBear left onto Shaver Grade Road, heading E.
  39. 0.4 miContinue straight onto Hidden Meadow Trail, heading E.
  40. 150 ftBear left onto Shaver Grade Road, heading SE.
  41. 0.4 miContinue straight onto Eldridge Grade Fire Road, heading E.
  42. 0.7 miContinue straight onto Filter Plant Road, heading E.
  43. 100 ftTurn left onto Eldridge Grade Fire Road, heading E.
  44. 1.3 miContinue straight onto Lakeview Fire Road, heading S.
  45. 0.2 miTurn left onto Pilot Knob Trail, heading N.
  46. 50 ftTurn left onto Lakeview Fire Road, heading N.
  47. 0.3 miTurn left onto East Peak Fire Trail, heading NW.
  48. 1.1 miContinue straight onto Northside Trail, heading S.
  49. 150 ftContinue straight onto East Peak Fire Trail, heading S.
  50. 0.1 miBear left onto Eldridge Grade Fire Road, heading SW.
  51. 0.3 miBear left, heading SE.
  52. 150 ftBear left onto Indian Fire Trail, heading S.
  53. 0.1 miSharp right onto Eldridge Grade Fire Road, heading S.
  54. 0.2 miContinue straight onto Wheeler Trail, heading S.
  55. 0.5 miTurn left onto Hoo-Koo-E-Koo Fire Road, heading SE.
  56. 0.2 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

56% dirt4% gravel40% unspecified

Weather

ClearTemperature 94°F64°
Feels like80°Precip0%Wind4 mphUV8Humidity31%
Hourly temperature
95°60°
Sunrise 6:16 AM12 AM3 AM9 AM12 PM3 PM6 PMSunset 8:19 PM
Tue 87°68°
Wed 82°53°
Thu 69°51°
Fri 73°50°
Sat 73°49°
Sun 65°49°

Sunset

The best sunset spot on this hike is 1.3 mi in (~61 min). Leave by 6:57 PM for the 8:19 PM sunset. Back at your car by 9:07 PM, after dark — bring a headlamp.

More sunset hikes nearby

Good to know

  • Drinking water at the trailhead

Other ways to reach this destination

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