Mosaic Trail Race

DEC
6
2025
Hit the hills at the Mosaic Trail Race on December 6, 2025 at Indian Mound Ranch near Austin, Texas. Choose distances from 50k down to a youth 1 mile on scenic, technical hill country single track with creek views and rugged ranch terrain.
Sat 6 Dec 2025
50 kilometers 26 miles 13 miles 15 kilometers 10 kilometers 5 kilometers

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Event overview

The Mosaic Trail Race takes place on December 6, 2025 at Indian Mound Ranch in Liberty Hill, Texas, near Austin. The event offers multiple distances:

  • 50k
  • 26.2 mi
  • 13.1 mi
  • 15k
  • 10k
  • 5k
  • 1-mile youth (12 & under)

Races use a mass start per distance, with an open start option available for runners who prefer to begin after the mass start. The youth 1-mile run is untimed and each youth runner receives a bib and finisher medal. Discounts apply automatically for registrants 19 and under for races 10 miles and shorter.

Course and logistics

The course is laid out as a figure-8 made from two roughly 5 km sections; marathon and half-marathon distances include an add-on on one loop to make a lap of about 6.55 miles. Terrain is primarily ranch and hill country single-track with open pastures, technical sections, short climbs, rocks, ravines, creek beds, bluffs, and river views.

Course markings include orange caution tape, yellow arrows, and many confidence markers; reflectors are used for dark-hour visibility. Basic aid station support is provided; runners can place their own supplies approximately every 5 km. Drop bag service is not provided. All races are chip timed with ankle chips; gun time is used for official results and awards. Pacers are not allowed. Awards: Top 3 overall and Top 1 masters (50+) per distance. Camping rules and a spectator vehicle fee apply at the ranch. Visit the organization's website for the most recent information.

50 km
50k
26 mi
26.2 Mi
13 mi
13.1 Mi
15 km
15k
10 km
10k
5 km
Youth 2 Mi
Youth 1 Mi

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