Past event · Happened Jul 24, 2026 (3 months ago). Upcoming at Thunder Valley Motocross Park →
Practice
What to expect
Thunder Valley Motocross Park in Morrison is open for riding Friday through Sunday, July 24 to 26, opening at 10am each day with the track freshly prepped and watered. With temperatures near 100 degrees, the crew waters until about 1pm, after which the extreme heat makes it tough to hold moisture in the track. Get there early for the best conditions, and stay hydrated.
Details can change.
Dates, times, fees and schedules come from the track's own posts and fliers and can change with weather, track conditions and other circumstances.
Call before you haul,
or check the track's
Facebook page,
before you make the trip.
MX Parks is an independent directory and doesn't run this event. For entry, camping or schedule questions, contact Thunder Valley Motocross Park directly.