10.6 miles
2,491 ft
-2,180 ft
741 ft
High Point


  • Riding area
  • Difficulty rating
    Secondary Access Road/Trail
  • Trail type
  • Bike type
    AM, XC, RD
  • Trail Usage
    Biking Primary
  • Direction
    Both Directions
  • Season
  • Ride in rain

Part of the 28 legal miles of mountain biking in Forest Park. It proves the problem between hikers and bikers still exist. Hikers will cry if you ride anything else in Forest Park. Trust me, you will see trails everywhere!!!!! But ALL are gonna lead to a confrontation with a hiker, they are walking angry. Its the only thing to ride if your looking for an after work ride in the Portland Metro Area. Continue onto Rd #9 if your looking for a loop down to Hwy30 and back under the St Johns Bridge. Lots of bus stops to catch a ride back downtown. Great trail for cyclocross training or a gravel grind.

Access Info

Enter Trailhead from NW Thurman, very close to Fat Tire Farm bike shop.

Local Trail Association
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Northwest Trail Alliance (nw-trail.org)
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More Stats for NW Lief Erikson Drive mountain bike trail
  • Altitude change
    312 ft
  • Altitude min
    340 ft
  • Altitude start
    340 ft
  • Altitude end
    652 ft
  • Grade
  • Grade max
  • Grade min
  • Distance climb
    5.3 miles
  • Distance down
    4.6 miles
  • Distance flat
    3,998 ft
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