Angel Island 1/1
Purisima Creek
Pirates Cove

Mt. Diablo Summer

Angel Island
Santa Cruz Mtns
Skyline to the Sea

Stinson Beach
Muir Beach



50 Mile Endurance Run 

Run-day Instructions



The  Diablo 50 Mile Endurance Run will start at 6:00 a.m. on Saturday, September 20th at Mitchell Canyon Trailhead.  Click on this Map for driving directions.  Park entrance fee is $2 per vehicle.



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 pink ribbon approximately every 1/4 mile.  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 pink ribbons indicating the correct route.   Pink glowsticks will be hung starting at the Juniper aid station (mile 41).


If you don't see a pink ribbon or a glowstick for 10 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.


The North Peak and Zippe trails from mile 45 to 47 are very technical with loose rock.  Please be extremely careful through this short section! 


Many will finish in the dark.  Please plan on carrying a flashlight and a backup light on the final 9-mile section.


No dogs allowed on the course.


Please click on  Course Map for a topographical map.  Course maps will also be available at runner check-in on Saturday morning. 


Elevation Gain 13,850 feet  (Elevation changes determined using an Avocet altimeter.)


Aid Stations

Fully-stocked aid stations every 3.1 - 9.6 miles.  You can expect fresh fruit, salty snacks, assorted candy, Clif Bars, Clif Shots, boiled potatoes & salt, water, and Conquest sports drink.  However, it is mandatory that runners carry at least one water bottle and highly recommended to carry two. 


         Aid Station                      Distance (mi)    Next Aid      Cut-off      Crew Access     Drop Bags

  1. Juniper Campground                    5.9                4.3                                 No (early)          No (early)

  2. Juniper Campground                  10.1                7.5                                 No (early)              Yes

  3. Macedo Ranch                            17.6                7.1                                     Yes                      No

  4. Live Oak Campground               24.8                6.3           2:15 p.m.          Yes                     Yes  

  5. Finley Road                                  31.1               6.6                                       No                      No

  6. Live Oak Campground               37.6                3.1           6:30 p.m.          Yes                     Yes

  7. Juniper Campground                  40.7                9.6           8:15 p.m.          Yes                     Yes

  8. Mitchell Canyon (Finish)             50.3                               12:00 a.m.


Drop Bags

We will have drop bags at Juniper (miles 10 & 41) and Live Oak (miles 25 & 38) aid stations.  Prepare a bag(s) or container(s) with your items (flashlight, clothes, special food, etc.)  Put your name & aid station on the drop bags and we will take them to the aid stations for you.  We will transport your drop bags back to the finish at the end of the day.



Pacers are welcome after 25 miles and encouraged for the final 9-mile section.


Check In

Please arrive by 5:30 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 20th!


Wendell and Sarah

[email protected]

(925) 947-3787


© Copyright 2003 Pacific Coast Trail Runs.  All rights reserved.