13.3 miles
2,232 ft
-2,735 ft
1.9 miles
High Point

A very chunky trail that has some flow here and there. It can be very loose at times.

If doing it as an out and back there is a long climb from the North end.

Local Trail Association
Boulder Mountainbike Alliance (bouldermountainbike.org)
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Trails in Route

Sourdough5.7 miles
Sourdough1.5 miles
Wapiti2.2 miles
Sourdough3.9 miles


  • Difficulty rating
    Black Diamond
  • Bike type
  • Direction
    Both Directions
  • Physical rating
More Stats for Sourdough South to North mountain bike route
  • Altitude change
    -503 ft
  • Altitude min
    8,655 ft
  • Altitude start
    9,214 ft
  • Altitude end
    8,712 ft
  • Grade
  • Grade max
  • Grade min
  • Distance climb
    6.4 miles
  • Distance down
    6.4 miles
  • Distance flat
    2,551 ft
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Layers winter
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Recent Trail Reports Along Route

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