Roxsand Gravel Bike Race
Saturday, March 6, 2027 · 9:00 AM–3:00 PM
Gunlock State Park, Gunlock
Gravel in the Back Country North of Town
Roxsand runs on the dirt roads around Gunlock Reservoir, out of Gunlock State Park about half an hour northwest of St. George. There are two distances — the 24.5-mile Duster and the 48-mile Buster — and the field sets off mid-morning.
Gunlock is the part of Washington County most visitors never reach. The road out passes through Santa Clara and Ivins and then keeps going, into ranch country and red rock with almost nothing on it. The reservoir sits in a narrow valley on the Santa Clara River, and the dirt roads that serve the area are what the race uses.
E-Bikes Are Allowed
This is worth flagging because it is genuinely unusual: the race is open to gravel bikes and e-bikes alike. Most events either ban e-bikes outright or bury them in a category nobody enters.
The practical effect is that a rider who could not otherwise hold 48 miles of dirt can enter the longer distance and finish it. If you have an e-gravel bike and have been assuming you are locked out of racing, this is the one to look at.
Choosing Your Distance
The Duster at 24.5 miles is a genuine introduction to gravel racing — long enough to require pacing and preparation, short enough that a fit rider without race experience can complete it. The Buster doubles it.
The surface is dirt road rather than singletrack, so this is not a technical event. What it asks for is sustained effort on loose surfaces, and the willingness to be a long way from anything for a couple of hours.
Early March, and What That Means
Early March here is the shoulder of the shoulder season. Days are warming but not yet hot, and the desert northwest of town gets its brief green period. It is also before the spring wind properly arrives, which matters more on a bike than on foot.
Dress for a morning that starts cold, not for the afternoon you will finish in.
Getting There
Gunlock State Park is on Gunlock Road, roughly thirty minutes from St. George through Santa Clara. The final approach is rural and there is very little in the way of services once you leave Ivins — arrive with everything you need, including water beyond what the race provides.
Who It Suits
Gravel riders wanting an early-season target, e-bike riders looking for a field that will actually have them, and anybody curious about the emptier northwest corner of the county. Mountain bikers with a heavier calendar have True Grit Epic later the same month, and the county's wider riding is covered in mountain biking St. George.
Frequently asked questions
What are the two distances?
The Duster at 24.5 miles and the Buster at 48. Both run on the dirt roads around Gunlock Reservoir from Gunlock State Park, and both set off mid-morning.
Are e-bikes really allowed?
Yes. Both bike types race the same event, which is rare — most organizers either exclude them outright or create a category nobody enters. Worth knowing if you had written off competing.
Is it technical riding?
No. It is dirt road throughout, so bike handling will not be what decides your day. The demand is aerobic and psychological rather than technical: hours of steady output on a loose surface, in country where the nearest help is a long way off.
Which distance should I pick?
Take the shorter one unless you already race. It rewards preparation without demanding a training block, and finishing it comfortably is the clearest signal that the longer option is within reach.
Is there anywhere to buy supplies near the start?
No. Services thin out after Ivins and there is essentially nothing at Gunlock itself, so arrive fully self-sufficient — food, spares, and water beyond whatever the race hands out. This is not a venue where you can pick up a forgotten tube.
What should I expect from the weather?
A cold start and a warm finish. Gunlock sits higher and away from the valley's heat, so it runs cooler than St. George, and early March mornings there are genuinely cold. Dress for the start rather than the temperature you will be riding in by midday.
Address
1450 S Gunlock RdGunlock, UT 84733