Mount Diablo Fall Trail Run 

8 Km, 25 Km & 50 Km

Run-day Instructions



The Mount Diablo Fall Trail Run will start at 8:30 a.m. on Saturday, September 25th at Mitchell Canyon Trailhead.  From Walnut Creek, take Ygnacio Valley Rd. toward Clayton for 7 miles.  Turn right on Clayton Road.  Go 1 mile to Mitchell Canyon Road and turn right.  Follow Mitchell Canyon Road for 1.5 miles into the Park.  Click on this Map for more detailed driving directions.  Park entrance fee is $3 per vehicle.


Message Board 

The purpose of this online Message Board is to provide a forum for PCTR runners to communicate with fellow runners and share information (i.e., rides to PCTR events, lodging requests, and favorite local restaurants).



Please click on Hotels & Motels for a partial listing of places to stay.  Although there is camping within the Mount Diablo State Park, the gates are closed overnight and there is no access to the start area at Mitchell Canyon Trailhead.



The course will be marked with green (8 Km) and pink (25Km & 50 Km) ribbon approximately every 200 meters.  There will be at least two blue-striped ribbons before a turn in the course.  The blue-striped ribbons will be placed before and on the same side as the required turn.  After you complete the turn, there will be green (8 Km) and/or pink (25 Km & 50 Km) ribbons indicating the correct route. 


The blue-striped "turn signal" ribbon can be as helpful in its absence as it is when it's present.  Too often, ribbons are either taken or redirected down the wrong path.   Until the ribbon-moving-vandals figure out that they need to pair a blue-striped ribbon with the solid ones they move, just don't turn unless you see those stripes!


If you don't see your respective ribbon for 3-4 minutes, you are off course.  One of the few rules of trail running is that, if you get off course, you must retrace your path until you find where you left the course and then continue along the marked course.  Failure to follow this rule may result in disqualification even though you may have traveled a greater distance than the official course. 


Many of the parks in California have poison oak and ticks.  We recommend washing with Tecnu and checking for ticks immediately after your trail run.


No dogs allowed on the course.



Course Map


Course Description


Elevation Gain:

  8 Km - 1,170 feet 

25 Km - 4,450 feet 

50 Km - 8,900 feet

(Elevation changes determined using an Avocet altimeter.)

Aid Stations

Fully-stocked aid stations every 8 kilometers. You can expect fresh fruit, salty snacks, assorted candy, boiled potatoes & salt, water, and Conquest sports drink.  However, it is highly recommended that runners carry at least 20 oz. of water between aid stations. 


        Aid Stations                                       Distance (Km)   Next Aid          Cut-off

25 Km

  1. Juniper Campground                                   8.2                 8.5
  2. Juniper Campground                                 16.7                 8.3
  3. Mitchell Canyon Trailhead (Finish)           25.0                        


50 Km

  1. Juniper Campground                                   8.2                 8.5
  2. Juniper Campground                                 16.7                 8.3
  3. Mitchell Canyon Trailhead (Start/Finish)  25.0                 8.3            12:45 p.m.
  4. Juniper Campground                                 33.3                 8.5
  5. Juniper Campground                                 41.8                 8.3
  6. Mitchell Canyon Trailhead (Finish)           50.1                                     5:30 p.m.


Post-Run Activities

There will be hot soup and chili at the finish line.

T-shirts will be given to all finishers.  While awards are given to the first female and male finishers, PCTR events are designed to be non-competitive, encourage the enjoyment or trail running, and emphasize personal achievement.  In addition, we will give away Vasque trail shoes to individuals in recognition of their efforts, accomplishments, or sportsmanship - or for just having "serious fun".

We will have PCTR merchandise available for purchase:



Clif Shots (6)                                             $7


Conquest                                                   $8


Event T-shirt (Hanes 100% cotton)                     $8


Running Hat (embroidered)                           $12


Dri-release Performance Shirt (Soffe)     $15


JoeTrailMan Gaiters                               $25


Duffle Bag (embroidered)                              $30



will be the official event photographer.  Photos should be available about a week following the event.


Check In

Please arrive by 8:15 a.m. on Saturday to check in and receive your bib number.   If you have any questions between now and then, please feel free to call or e-mail us.  We look forward to seeing you Saturday, September 25th!


Wendell and Sarah

[email protected]

(925) 947-3787


© Copyright 2004 Pacific Coast Trail Runs.  All rights reserved.