Mosaic Trail Race

Mosaic Trail Race

Mosaic Trail Race is a trail running event at Indian Mound Ranch in Liberty Hill, Texas, held on December 5, 2026. The event uses the ranch trails along the San Gabriel River and takes place on private property that is not open to the public except for official races and trail work days.

Race distances

• 50K
• 26.2 mi (full marathon)
• 13.1 mi (half marathon)
• 15K
• 10K
• 5K
• Youth 1 mile (untimed)

The course is laid out like an infinity symbol or figure 8. Runners alternate between a west loop and an east loop and pass the Race Hub between loops. The west loop is mostly flat but technical in places, with short climbs, twists, ravines and a bluff overlooking the river. The east loop mixes open pasture running with flowy single track and no extended climbs. Half and full marathon runners use an add-on section so laps measure about 6.55 miles.

The event uses extensive course markings, basic aid station support, and chip timing. Races are cupless so participants should bring their own cup or bottle; collapsible cups are available for purchase onsite. Pacers are not allowed. Leave No Trace rules apply and littering can lead to disqualification.

Camping on the ranch is allowed Friday night only with fees for nonracing spectators; registered racers driving alone are not charged the spectator access fee. Visit the organization's website for the most recent information.