OC MTB Limestone XC Race 11m/21m

5524 Santiago Canyon Rd.
Silverado, CA 92676


Event Website
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Event Description

This race will be opened to only 150 riders.

Come join us for a thrilling mountain bike race on a scenic and fun course. The 1 lap course is 11 miles for High School, Beginner, and Sportsman classes and the two lap course is 21 miles for Experts. It is a mix of single track and fire-road. It is a fast and smooth course with a few technical sections.  Fast lap times are around 55 minutes and there is approximately 2000 feet of ascending and descending per lap.  Cash Purse for top 5 male and female expert entries. 1st in age group awards!  We take pride in giving you the best bang for your buck.  Post-race refreshments and a raffle!



Limestone Canyon offers riders the experience of seeing "original California" in its fall glory.  The course will meander under a canopy of thick oaks, alongside seasonal creeks, a year-round dripping spring and past a striking geological formation known as “the Sinks.” This pristine canyon will give riders a sense of calm solitude as they race through serene meadows and rolling hills.  Once on the ridge you will be captivated by panoramic views of the Pacific Ocean, Catalina Island, Irvine Lake, and the Cleveland National Forest.


  • Experts  – 2 Laps 21 miles
  • High School, Beginners, and Sport – 1 Lap 11 miles
  • High School – 14-18 years
  • Beginner – 19-35, 36-49, 50+ years
  • Sport – 19-35, 36-49, 50+ years
  • Expert (Open) – Cash Purse to top 5 male/female



Event details and schedule

Limestone Canyon Wilderness Park
Augustine Staging Area
5524 Santiago Canyon Rd.
Silverado, Ca. 92676


May 4th, 2019


Race Day Parking: 
Augustine Staging Area


Start/Finish Location: 

Augustine Staging Area


Pet Policy: 


Race Distances:
1 Lap Race: 11 miles 
2 Lap Race: 21 miles


Course Information: map is posted on our website
Trail Description: fire roads & single track

Elevation gain: 1985ft or 3950ft

Course: Pre-riding the course is not allowed unless it occurs on wilderness access days or docent-led activities. Pre-riding the course may jeopardize our ability to offer these events.


Event Time Line:
6:45 – 7:30 am – Check in
7:00-7:30am Partial Lap Practice
8:00am Race Starts – Experts, Sportsman and High school, Beginners


Race Formats: Cross Country Event

  • Multi Wave Start by category
  • Experts – 2 Laps
  • High School, Beginners, and Sport – 1 Lap
  • Expert Male and Female Purse
  • 10:30 am – Awards and raffle
  • Must be present for awards and raffle


Packet Pickup:
Friday, May 3rd from 5:30pm – 7:00pm at 
Rock n Road Cyclery in Anaheim Hills

Or race morning

Please note: only out of town participants or 1+ hour drive is available to pick up packets on race day.

Class Categories:


  • High School – 14-18 years
  • Beginner – 19-35, 36-49, 50+ years
  • Sport – 19-35, 36-49, 50+ years
  • Expert (Open) – Cash Purse



  • High School – 14-18 years
  • Beginner – 19-35, 36-49, 50+ years
  • Sport – 19-35, 36-49, 50+ years
  • Expert (Open) – Cash Purse

Limestone Canyon has Open Access Day to test the course.  Please go to this website for Open Access Dates: http://letsgooutside.org/activities/ 

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