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mliu92 · CC BY-SA 2.0

Historic "Old Colma Rd" (1879-1915) & Old San Pedro Mountain Road is a 5-mile out-and-back near Pedro Valley, CA. It climbs 1,161 ft, with sections as steep as 33% grade, and is mostly dirt. It scores 21/100 on the Ambleway Wildness scale: paved and peopled.

Elevation

0 mi157 – 564 ft · steepest grade: 33%5.1 mi

Getting there

Trailhead: Old San Pedro Mountain Road 37.58262, -122.49511
Nearest town Pedro Valley, CA

Directions

AMBLEWAYwww.ambleway.com

Historic "Old Colma Rd" (1879-1915) & Old San Pedro Mountain Road

5 mi · ▲ 1,161 ft · 2 hr 15 min

Elevation 158–564 ft

Out & Back

Trailhead: Old San Pedro Mountain Road · 37.58262, -122.49511

Weather Aug 4: Clear, high 68°F / low 57° · precip 3% · wind 9 mph · sunrise 6:17 AM · sunset 8:16 PM

Transit-accessible: Linda Mar Boulevard & Seville Drive stop 663 m from the trailhead

  1. Start on Old San Pedro Mountain Road, heading SE.
  2. 1.1 miTurn right, heading NW.
  3. 0.8 miTurn left, heading NW.
  4. 0.6 miContinue straight onto Historic "Old Colma Rd" (1879-1915), heading NW.
  5. 150 ftContinue straight onto Devil’s Slide Trail, heading SW.
  6. 50 ftContinue straight onto Historic "Old Colma Rd" (1879-1915), heading SW.
  7. 50 ftReach Old San Pedro Mountain Road, then turn around and head back the way you came.
  8. 50 ftContinue straight onto Devil’s Slide Trail, heading E.
  9. 50 ftContinue straight onto Historic "Old Colma Rd" (1879-1915), heading E.
  10. 0.6 miTurn right, heading SE.
  11. 0.8 miTurn left onto Old San Pedro Mountain Road, heading W.
  12. 1.1 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

75% dirt25% unspecified

Weather

ClearTemperature 68°F57°
Precip3%Wind9 mphUV8Humidity77%
Hourly temperature
70°55°
Sunrise 6:17 AM12 AM3 AM9 AM12 PM3 PM6 PMSunset 8:16 PM
Wed 64°55°
Thu 77°57°
Fri 81°56°
Sat 74°54°
Sun 71°54°
Mon 70°54°

Sunset

The best sunset spot on this hike is 2.4 mi in (~77 min). Leave by 6:39 PM for the 8:16 PM sunset. Back at your car by 9:39 PM, after dark — bring a headlamp.

More sunset hikes nearby

Good to know

  • Transit-accessible: Linda Mar Boulevard & Seville Drive stop 663 m from the trailhead

Other ways to reach this destination