November 21-22, 2026

Dinosaur Valley Endurance Run

Schedule and Location

Sections On This Page:

Schedule, Location, Parking, Accessing Main Park Entrance

Supporting Pages with More Details:

Travel Information (Hotels, Camping, Air Transportation)

Schedule

Friday, November 20, 2026

12:00 pm to 5:00 pm - Packet pickup and supply dropoff for all athletes - get your race packet before race morning and set up in the various crew areas. Race site will be unsupervised overnight so leave supplies at your own risk, and do not leave any food (wildlife hazard).
2:00 pm - Those camping at the state park will be able to get their campsite beginning at this time over at the main entrance to the State Park.
10:00 pm - Lights out and all quiet at any of our campsites so our participants can be fresh for their race in the morning.

Schedule

Saturday, November 21, 2026

You'll notice our 25K and 5 Mile races are named in order of the periods from the Mesozoic Era! The Mesozoic era in prehistoric times was made up of 3 time periods:

Triassic Period (251.902 to 201.4 million years ago) - our Saturday 8 am races!
Jurassic Period (201.4 to 143.1 million years ago) - our Saturday 8 pm race!
Cretaceous Period (143.1 to 66 million years ago) - our Sunday 8 am races!

Remember to consider being a Mesozoic Maniac by doing races at each of those "time periods in history" (each of those start times!).

SATURDAY MORNING

4:30 am - Parking lot will open.
6 am – Packet pickup begins at the start/finish for Saturday participants.
6:45 am to 7:00 am - Trail briefing
7 am – 100 mile and 100K starts.
7:45 am to 8:00 am - Trail briefing
8 am - 50K, Triassic 25K, Triassic 5 Mile start.

SATURDAY EVENING

8 pm - Jurassic 5 Mile start. A great chance on the safest parts of the race course to try out nighttime running or hiking!
8 pm to 10 pm - Karaoke at the start/finish/Cedar Brake Aid Station. An annual tradition!

Schedule

Sunday, November 22, 2026

7 am – Packet pickup begins for Sunday participants.
7:45 am to 8:00 am - Trail briefing
8 am – Cretaceous 25K and Cretaceous 5 Mile start.
12:30 pm - CUTOFF - all 25K, 50K, and 100K participants must have started their final loop (54:00/mi pace for 25K, 33:42/mi pace for 100K). 100 mile must be through the Cedar Brake aid station at mile 84.
2:30 pm – CUTOFF - all 25K, 50K, and 100K participants must be leaving Fenceline inbound towards the finish (with 2.5 miles to go to finish).
3:00 pm – CUTOFF - all 100 mile participants must be leaving Fenceline aid station inbound at mile 92.
4:00 pm – CUTOFF – all 100 mile participants must be starting their last 5 mile loop (mile 95 for the 100 miler).
5:00 pm – CUTOFF - last incremental cutoff for all distances – all participants must be leaving Fenceline aid station inbound to the finish (approximately 2.5 miles from the finish).

Location

Get ready to run in Dino Valley! The race is held at the beautiful Dinosaur Valley State Park in Glen Rose, Texas. The race is accessed from the back of the property, not through the main gate.

This course has rolling and sustained ascents and descents, although none are terribly steep. The loops take you through varied terrain, from double track trails in fields to single track in wooded areas. There is a mix of packed dirt, smaller rocks, larger rocks, slick rock, and some roots. There are no water crossings. This course really has a little of everything, which includes its views. There are amazing overlooks on this course where you can see for miles.

Parking

NO SHUTTLES NEEDED! Race Parking will be moving back onsite at the State Park in 2026! We asked, you answered, and we listened. Based on the survey feedback from the event, we know athletes will be happy to hear we won't have shuttles for 2026. While the shuttles ran well, it was extra logistics and time the athletes wish weren't required.

We worked with the State Park for a solution that will be environmentally focused while also allowing athletes and their crews to park and walk into the race site safely (i.e. not down the shoulder of a dark country road). We funded a new entry and gate into their existing event parking lot to be more resilient in bad weather and allow for two-way vehicle traffic in and out of the parking field.

The parking field is in a highly rural area with NO street number assigned, so you can copy and paste these GPS coordinates into your phone to get there, or use this link.

32.243423, -97.829106

Please check the directions your phone gives and make sure they have you getting to County Road 1007 via Hereford Street. The other directions that take you via County Road 1008 are dangerous or impassable in high water or in the dark.

Participants, crews, and spectators will walk-in to the race site's "Valley Village", which is the home of the start and finish lines, the end of each race loop, the crewing areas, and the Cedar Brake Aid Station. It is a 0.75-mile walk there along a dirt fire road access within the State Park.

Accessing the Main Entrance to the State Park

You may want to go over to the main entrance to Dinosaur Valley State Park for access to:
• Official Paid Campsites (which you must have previously reserved with the race)
• Dumping Station for RV Waste
• Indoor-Plumbing Restrooms and Camp Showers
• Playground
• Picnic area with picnic tables

NOTE that unless you want to cross the river by foot and walk 1/3 of a mile, the race site is NOT accessible from the main public parts of the State Park.

Here are the rules from the State Park:

ONLY race participants may enter the park for free as part of their race entry. The State Park front gate staff will also have a list of all participants and may be checking IDs if they choose to.
If family is only coming out to watch the race and NOT camping and will be exploring the Park while the racer is on the course, they will still have to pay $8.00 per day for anyone 13 and over (12 and under is free). State Park staff will provide a normal Window sticker to family/spectators that check in and pay thru the front gate.
Family members do not need to make a day-use reservation on-line. They will let the staff at the front gate know that they are family/spectators of one of the entrants in the Endurance Run and even if they are sold out of passes for the day they will get them in.
For those camping in RV hookup sites: If entrant has family that will be camping with them each family member that is 13 or over will pay $8.00 per day that they are camping. Children 12 and under are free. The family will need to know the campsite number that the Entrant will be in. This was sent by the race to all the campers.
For those tent-only camping in the two group campsites: the camping fee covers only your camping and the park entry of the person who reserved it. Each person who has not already paid for a spot must pay at the park entrance.
TSPP (State Park Passes) FOR CAMPING – Entrants cannot use a TSPP to get a discount on their camping fees as part of our Event Contract with the State Park.
TSPP (State Park Passes) FOR PARK ENTRY – if a family has a TSPP, we will accept it at the Park for the family to get in for free each day or for camping.
All normal rules apply when anyone is coming thru the front gate of the Park, such as placards/window stickers need to be visible to Park Personnel to make ingress a faster process.