The "Potential" Presidio Loop
This is what the Presidio mountain biking could look like if a multi-use sustainable trail network were constructed. Note that the changes required aren't extensive when compared to the already existing Presidio trails.
This proposed trail system is essentially a linked set of 3 loops, linked together in a 3-leaf clover configuration. They provide for excellent loop options for all users and increase the effective size of the trail system in the park without creating many new trails.
Solid Red = Paved Trail, Road or Bike Route; Dashed Red = Dirt Trail
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