The Track

Facts About Our Track

Thunder Valley Motocross Park was founded in June of 1999, promoter David Clabaugh couldn't have known how appropriate his track's name would become. He knew that nearby was an NHRA drag-racing track with the same name (Thunder Valley), but within a few short years of the founding of the motocross track, four-strokes took over motocross completely, leaving a sound of thunder every time the gate drops at the facility.

We make fuel boil!
Thunder Valley, just a few miles below downtown Denver, hosted its first AMA Pro Motocross National in July of 2005. In the first few years of racing at the facility, riders and mechanics were met with a combination of altitude and summertime heat that not only made it physically difficult on them but caused the fuel in the motorcycles to literally boil.
We where the first to hold a night time race.
Thunder Valley hosted the first AMA Pro Motocross National ever held at night, under a battery of lights that illuminated the valley. With a live internet and TV audience watching, the race was a smash hit.
Track Amenities
Grandstand Seating
Open Air Festival Seating
Covered VIP Viewing Areas with live timing and scoring, private restrooms, and catering
Covered Super Ticket Viewing Area
Open Air Corporate Suites
Handicap Viewing Area
Infield Track Viewing via Three Track Tunnels
Nearly 100% track Viewing from a variety of vantage points
Large interactive Sponsor Village
Food and Soft Drink Concessions
Beer Concessions
State-of-the-art sound system
Event Simulcast on FM Radio
State-of-the-art Announcer Tower
Baby Changing Station
Free & VIP paid Parking
Onsite Parking
Motorcycle Parking
Handicap Parking
Easy entry/Exit
Onsite Camping
Reserved RV spots
Free Motorcycle Parking and Gear/Helmet Check
Vintage Bike Show
Jumbotron Viewing
Friday Night: Pit Bike Race
Amateur Motocross Racing Sunday
Event Rules

We welcome you to the 2016 Thunder Valley National.

David Clabaugh and the Staff at Thunder Valley would like this to be an enjoyable weekend for everyone and below you will find the track and camping rules. Please adhere to these rules, everyone here has spent a lot of time, effort and money for this race and we don’t want to have to ask that they leave the track.

So for everyone’s safety and enjoyment, please follow the rules.



2. Anyone taking Banners from the track will be prosecuted

3. No hanging on or pushing against the fences

4. No Glass Bottles

5. No Campfires or Fireworks

6. No house furniture

7. No scaffolding, ladders, beach umbrellas, canopies or easy-ups

8. No Admission until Thursday 8am

9. No pets allowed

10. NO ALCOHOL ALLOWED TO BE BROUGHT IN! If these rules are not adhered to, you will be asked to leave the premises.


Vehicles: All vehicles are subject to search upon entry by security personnel Coolers: All coolers will be searched by security personnel Responsibility: Motocross racing, like all motorsports, can be dangerous. When you enter the grounds you assume all risk of injury and/or damage. It is your responsibility to keep yourself and your children a safe distance from the racetrack. Parents, you are responsible for the safety of your children. Be aware of their location at all times. Never turn your back to oncoming racers. STAY OFF THE TRACK. Only registered racers and authorized personnel are permitted on the track.


Prohibited: We do not permit fireworks, firearms, glass containers or open fires

Tickets: Your arm band is your weekend ticket and must be worn at all times. If you leave the facility, you must have it on in order to re-enter. This is your gate ticket. Do not take it off.

Pets: All pets must be on a leash. No vicious or barking pets permitted. No pets are allowed in the spectator area They must remain at your air conditioned camper.

Camping Information: There are no electric or water hookups and is First Come – First Serve Basis

Quiet Time is 11:00 pm nightly.

Trash: Please use the trash receptacles around the camp sites. If you need trash bags, please get one from the front gate.

Hours of Operation
Closed Monday and Tuesday
Open Wednesday, Thursday and Friday 10:00Am to Dusk
Open Saturday 9:00AM to 6:00PM
Open Sunday 9:00AM to 5:00PM