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Old RR Grade

Mill Valley,  
From You7954.44 Mi
Local TipsParking is limited on narrow road near starting point. Park closer to downtown and run/walk or cycle to starting point. Dogs on leash.
Created (yyyy-mm-dd)2015-06-30
Created ByTracy
  • Soft
  • Running
  • Hiking
  • Mountain Biking
  • Walking
  • Parking
  • Limited Hours
  • Hills
  • Out And Back
  • Technical
  • Dog Friendly
Street Crossings
  • A Few
Max Distance15-39
Volume of Use
  • Steady
DescriptionNice, steady climb on a fireroad popular with runners, hikers and mtn bikers alike. Many route possibilities with a mix of fireroads & single track accessible from this main road, including a popular route to Mt. Tam.

Start in the shade of a beautiful wooded canyon and climb toward the sunshine and Mt. Tam. Great views of Bay Area as you reach Summit Rd (approx. 2 miles). Continue on Fern Canyon (paved) for a short section, then access Old RR Grade again (dirt) to keep ascending toward Mt. Tam (another 4-6 miles). Make a ~7 mile loop by hopping on Hoo-Koo-E-Koo Fire Road off of RR Grade (approx 0.7 mi after paved section), then Blithedale Ridge to H-Line, which will take you back to Old RR Grade almost at the point the pin is dropped (this loop is up, rolling, then down).

Runners/hikers can also pick up Temelpa Tr. off of Fern Canyon if they want to switch to steep single-track.

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