2 miles
193 ft
-417 ft
440 ft
High Point

Tunnels Road Details

  • Riding area
    Los Penasquitos Canyon
    San Diego, California
  • Difficulty rating
    Access Road/Trail
  • Trail type
    Dirt/Gravel Road
  • Trail Usage
  • Direction
    Both Directions
  • Climb Difficulty
    Black Diamond

Fireroad that runs north-south through the tunnels area. The middle is known as "cardiac hill" because it is stupidly steep.

Local Trail Association
More Stats for Tunnels Road mountain bike trail
  • Altitude change
    -224 ft
  • Altitude min
    196 ft
  • Altitude start
    420 ft
  • Altitude end
    196 ft
  • Grade
  • Grade max
  • Grade min
  • Distance climb
    3,188 ft
  • Distance down
    4,906 ft
  • Distance flat
    1,836 ft
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Directions to tunnels-road trailhead (32.944437, -117.169546)
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Tunnels Road Trail Reports

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140 |
Jul 18, 2016 @ 7:32pm
Jul 18, 2016
Tunnels Road, San Diego

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