Mt Diablo: Tarantulas & New Safety Signs-North Gate-Summit

Friday, October 7, 2016

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California state parks officials announced a plan for additional safety measures for roads on Mount Diablo. Following California Department of Transportation standards, the project was designed to increase the safety for cyclists and motorists on Mount Diablo. *1

The new improvements include:

  • Solid Double Yellow lines and Designated Passing areas 
  • Bike Sharrows
  • Additional STOP signs for safety
  • Revised warning Curve/Speed Advisory signs
  • Improved Safety Communication to Mount Diablo State Parks’ Visitors

Mt Diablo State Park North Gate Entrance to Northwest Boundary.

Northwest Boundary to Burma Rd Trailhead.

Burma Rd Trailhead to Diablo Ranch.

Diablo Ranch to the Junction.

Watch out for the tarantulas!

Junction Ranger Station-New Bike Repair Box

Summit Rd to Livermore Overlook.


Livermore Overlook to Toyon Picnic Area.

Toyon Picnic Area to Grapevine Picnic Area.

Grapevine Picnic Area to Juniper-Diablo Valley Overlook.

Juniper to Devil’s Elbow.

Devil’s Elbow to the Lower Summit Parking Lot.

Steep climb up Mt Diablo “wall” to the summit upper parking lot.

Magnificent summit views!

Watch out for tarantulas crossing the road and let’s give a big round of applause for the new safety signs and solid double yellow lines leading up from both sides of the mountain to the summit!


Weather: Sunny and warm! Temps ranged from the high 50’s to the mid 80’s with NW winds.

View the interactive RGPS route map & profile


Follow this route for today’s ride (start from Heather Farm-30 Miles):

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