The Mammoth at Dinosaur Valley 2024

Dinosaur Valley State Park - 1629 Park Rd 59
Glen Rose, TX 76043

Running > Obstacle Race, 10k, 5k, 1k

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Event Description

IT'S A WHOLE DIFFERENT ANIMAL! . THE MAMMOTH returns to Dino Valley and it's going to be bigger and better than ever! The Mammoth is a FAMILY FRIENDLY, single day, multi-distance adventure trail run. With FIVE different distances to offer, all athletic abilities will be able to run their race. Race individually or with a non-competitive team. The courses will utilize a part of the parks 20 miles of single-track dirt and limestone trails. Mild to significant elevation gains, low level water crossings, NATURAL OBSTACLES and amazing scenery will make THE MAMMOTH an ADVENTURE RUN run not to be missed!

The Special Event area will include Family Friendly activities,  food, drink and product vendors.  Participants are encouraged to make a day (or a weekend) of enjoying this HISTORIC parks features and attractions. Explore the pre-historic dinosaur tracks, have a picnic, pitch a tent for the weekend and enjoy the GREAT Outdoors! 

  • PETS ARE NOT ALLOWED. USATF sanctioning does not allow for animals to participate in competitions.
  • The MAMMOTH is an Enviro-Friendly Event - B.Y.O.B (Bring Your Own Bottle) 
  • The Mammoth is RAIN or SHINE. In the event of inclement weather that would threaten the safety of the racers, the event or courses may be altered or the event may be delayed or cancelled.

TERRAIN - Classic Texas Trail


  • 0730 am -  30K  Start
  • 0745 am  - 15K  Start
  • 0800 am -  10K  Start
  • 0815 am -   5K   Start
  • 1015 am  -  Mammoth Mighty 1K  Start

CLASSIC WOOLLY SWAG - All participants will receive a MammothRace OFFICIAL Race shirt and a Classic Cool Finisher's Medal. 

Sticking with The Mammoth Tradition, Awards will go to FIRST PLACE ONLY - MALE and FEMALE finishers in each age group:

  • 39 and under
  • 40-59
  • 60 and above.


PRE-RACE DAY Packet Pick-up - TBD

RACE DAY Packet Pick-up begins at 0700


  • Price INCLUDES Entrance and Day Use of Dinosaur Valley State Park
  • Gate opens at 0630 a.m.


Race Entry Fees are NON-REFUNDABLE, however TRANSFERS to another Person, Category or Mammoth Event are allowed.

Event Location & Accomodations

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