Thank you for joining us for the 30th annual pilgrimage to Castle Rock for the unofficial start to the Colorado cycling season. Here is everything you need to know about the event. If you have any questions, please do not hesitate to contact us.

Find your course

The Subaru Elephant Rock was founded in 1987 as a small, local ride, and since has grown to be one of the largest and most respected community cycling events in the Rocky Mountain Region.  Find more information on all the various courses including profiles and download strava maps.

New Family Course Mass Start / Police Escort

The Subaru ERock Family course will have a mass start at 8:45 a.m. sharp. The course has been modified to avoid a construction area on the bike path and we thought this would be a fun alternative. Please plan to line up at the start line at 8:30 a.m. Start waves will start at 8:45 a.m. The Castle Rock Police will provide an escort for us for the first mile or so.  Click here for more details and to view the new course map.

Start / Parking / Finish / Party Location

The 30th Annual Subaru Elephant Rock Cycling Festival start, finish and party will take place at the Douglas County Fair Grounds just 1/2 mile south east of downtown Castle Rock. Castle Rock is a small, picturesque town nestled in the rolling hills 20 miles south of Denver, just off of Interstate 25.

Directions / Parking

Please CAR POOL or allow extra time when coming to the Subaru Elephant Rock. There is plenty of parking in downtown Castle Rock and at the Douglas County Event Center.

Click Here to view our detailed parking map.

Full Weekend Schedule

Check out the full weekend schedule including the new Clif Bar Kids Zone, and the Subaru ERock Sunrise-Sunset Mountain bike race and all the start times.

Click here to view the schedule.

Course Information / Aid Stations

Course Information

*ROAD CONDITIONS* As a friendly reminder with all the rain, please ride safe on all the turns, some roads have gravel from the weather.  

*ATTENTION CENTURY RIDERS* New this year, there is a 40mile bail out at the 40 mile cut off.  If you are feeling not up to par and feel that you can’t make the full 100, there is a 40 mile bail out option.  

*SAG SUPPORT* Sag wagons will drive the course and be available to assistance riders experiencing mechanical trouble or those who become too fatigued to finish. Please be prepared to handle your own flats and minor repairs.

Start Times

We recommend the following start times so that you make it back from your ride with plenty of time to kick back at the Party at the Rock post-ride Italian Festa and Expo:

Cyclists riding the 100 and 62 mile courses must start no later than 8 a.m. Bicycle trailers are not allowed on the 62 & 100 mile course.

Aid Stations

There will be plenty of energy replacing snacks, water, Clif products and Nuun hydration drink at each of the aid stations positioned every 12 to 18 miles throughout each of the courses. It’s always a good idea to carry a energy bar, gel, etc… with you in case you need a boost in between aid stations.

Rider Numbers

Your super cool rider number sheet will be available when you pick up your packet during packet pick up or at the event. The numbers will be customized with your name and number on your wrist band, bike number and helmet number. Please follow the detailed assembly instructions on the rider number sheet.

You must wear your event wrist band at all times! Your wrist band will give you access to the course and refreshments at the aid stations as well as act as your ticket to the lunch. The detachable tag on your wrist band will act as your drawing ticket. To be entered into the prize drawings, place the tag from your wrist band into the drawing buckets on the stage when you finish your ride.

  • Your helmet number must be attached to the front of your helmet.
  • Your bike number must be attached to the top tube of your bike.
  • The rider numbers are color coded. Participants riding the 62 & 100 mile courses must display one color to gain access to the course. Another color rider numbers must be displayed by participants on the 40, 27 and 8 mile courses. Colors have not yet been determined closer to the event.
  • The Colorado State Patrol has the authority to remove anyone without a bike number from the course.
Rider Safety

Riding safely and considerately is vital to the safety and enjoyment for all riders. Colorado is a fantastic place to ride bikes. However, bicyclists are held to the same traffic laws as motorized vehicles.  The future of cycling events in Colorado depends on your cooperation in following safe cycling practices.

• Obey all traffic signs and signals.
• Yield to traffic with the right of way.
• Ride single file except to pass when possible.
• Ride safely to the right side of the road.
• Do not ride recklessly or in a manner that endangers others.

Since long stretches of the ride take place on open roadways, it is imperative that participants obey all laws for their safety and the safety of others. The Subaru Elephant Rock fully supports the law enforcement on this matter. We rely on these law enforcement agencies to manage public safety during this logistically complex event. We owe them the consideration of riding within the law. Be aware that cyclists are subject to the same tickets and fines as vehicle drivers. Law enforcement has the authority and mandate to uphold traffic laws during this event. This includes traffic tickets and removal of riders from the courses if necessary.

For your safety, helmets are required!  Riders will not be permitted to start the ride without a helmet. Most of all have fun, this is just a ride  not a race.

Frequently Asked Questions

I ordered Merchandise, where do i pick it up?

All merchandise pre-ordered and sales will be available Ride Weekend at the Douglas County Fairgrounds.  You can pick it up either Saturday June 3, from 4-8pm or Sunday June 4 in morning at registration or in the expo after the ride.

Forgot to pick up my packet, during early packet pick up?

Thats okay, we will move all the packets to the event for you to pick up, either on Saturday June 3 from 4-8pm or early Sunday June 4th, at 5:30am.

I am registered, and I would like to purchase merchandise

Awesome, we would love for you to wear this years gear.  However, all of our pre-ordered merchandise sales are over, you can however, purchase items at the event.  We do have limited supply, so come early.

What kind of food is at the aid stations?

Fresh fruit, water and energy replacing snacks will be available at each the rest stops positioned every 10-18 miles throughout each of the courses.  We will also have Clif bars and Nuun Hydration on course, make sure you train with them before hand.

Will there be sag support?

Yes, Sag wagons will rove each of the courses with water and road assistance to help riders experiencing mechanical trouble or those who become too fatigued to finish. Please be prepared to handle your own flats and minor repairs. the Colorado State Patrol, The Douglas County Sheriff’s Department, the El Paso County Sheriffs Department, and the Castle Rock Police Department will be on hand to make sure your ride is safe and enjoyable.

Can i still camp?

Yes, we have booth RV and tent camping at the fairgrounds the night before the ride.  Its $20 for one camp site, and you can just come down and pay on site. Camping Check in is from 4-8pm on a first come first sever basis. We also have showers and bathrooms open all night

I didn't train enough, Can I Downgrade my Course

Aww no worries, if you feel like you need to ride a shorter course, feel free.  If you feel like switching out your number, you certainly can, but its not required.  We will be open on Sat afternoon from 4-8pm or on Sunday starting at 5:30am.  Thanks again for riding with us.  See you on the 4th.

I want to ride a longer course, How do i upgrade?

Awesome, we have plenty of room in the longer courses.  Just come to registration that morning and we can change out your numbers and there will be a fee for the difference. We will be open on Sat afternoon from 4-8pm or on Sunday starting at 5:30am. Thanks for riding with us.

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Other Ride Information

Packet Pick Up / Registration Information

Cyclists that registered by May 15, can pick up their 2017 Subaru Elephant Rock T-shirt, and bike number at participating retail shops from May 23 through May 31 (by 5pm). When you register please remember your bike shop! There is NO walk in registration. Click here for all bike shop locations.

If you choose to pick up your packet at the Douglas County Fairgrounds ride weekend, you can pick up your packet and merchandise at the following times:

Saturday June 3, from 4-8pm
Sunday June 4, starting at 5:30am

Discover Castle Rock, CO

With a reputation for small town hospitality, this charming community has received recognition by numerous national publications as one of the best towns to live, work and play. Experience everything from designer boutiques and one-of-a-kind restaurants in the historic downtown to the Outlets at Castle Rock, a destination outlet mall with over 300 shops, restaurants and banquet rooms. Whether you are shopping, dining, recreating or indulging in one of the popular day spas, you are sure to have a memorable experience.

Click Here for more information on visiting Castle Rock

Post Ride Messages 

You’ve ridden hard, and you deserve to feel great after your ride! The Subaru Elephant Rock is happy to announce that we will have a new sports massage concession this year to help work out those sore muscles post-ride. The rocky mountain west’s largest sports massage company, The Sports Massage Team, LLC, will be at the finish line with at least 15 sports massage therapists who will be there and ready to work on you. The team will be offering sessions in 15 minutes increments to take care of those leg muscles that just finished working so hard. If 15 minutes just isn’t enough, they can string together as many of those 15-minute sessions to work your sore muscles the way they need to be worked! Their goal is to get you in promptly and provide the best sports massage available!

15-Minute $20          The Sports Massage Team accepts:
30-Minute $40          Cash, Visa, MC, AmEx, and Discover
45-Minute $60

Bike Check

The Douglas County D.A.R.E. program will oversee the bike check area at the finish/party area. There will be a $3 charge for the bike check.

Clif Bar Kids Zone

The CLIF Kid Ride Zone is an enclosed pump track that includes a variety of wooden features that help kids enhance their bike skills and have fun doing it!  Bikes and helmets are provided and it is free for all, come by the finish line expo on Sunday from 10am to 5pm to jump in on the fun!

Party at the Rock

The Party at the Rock is free to all Subaru Elephant Rock participants. There will be live music at the stage from 11:30 a.m. to 2:30 p.m. with Denver’s own The Outliers. The Subaru ERock Expo will take place at the finish/party area at the Fair Grounds from 10 a.m. to 4 p.m. Check out what’s new in the world of cycling!


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