OC MTB Limestone XC Race

Come join us for a thrilling mountain bike race on a scenic and fun course. The 1 lap course is 12.3 miles for High School, Beginner, and Sportsman classes and the two lap course is 24.6 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 50 minutes and there is approximately 2430 feet of ascending and descending per lap.  Cash Purse for Expert entries and 1st in age group winners will receive an OC MTB cycling jersey!  We take pride in giving you the best bang for your buck.  Post-race refreshments, overall and age group awards, and a raffle!

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

September 16th, 2017

Race Day Parking: 
Augustine Staging Area

Start/Finish Location: 
Augustine Staging Area

Pet Policy: 

Race Distances:
1 Lap Race: 12.3 miles (20k)
2 Lap Race: 24.6 miles (40k)

Course Information: 
Trail Description: fire roads & single track
Elevation gain: 2430ft or 4860ft
Course map: not available to post; trails available only on open access days

Turn by Turn Course Description:
12.3 and 24.6 miles: Start at Augustine Staging, out Limestone Canyon, Left on Raptor, Right on Limestone Ridge, Right on Cactus Canyon, Left on Limestone Canyon, Right on East Loma, Left on Box Springs, Left on East Loma, Right on Hicks Haul, Left on West Loma, Right on Shoestring, Right on Shoestring single track, Finish at Augustine.

mx course

Click here for larger image.

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, September 15th from 5:30pm – 7:00pm at Rock n Road Cyclery in Anaheim Hills
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

Registration Prices: 200 racers max
Opens on Active.com on 5/03/2017 at 9:00am
$40 – 1 lap (High School, Beginner and Sportsman)
$55 – 2 laps (Experts)

Registration is easy:
Register online at active.com or download and mail the form and waiver.

Contact us: