Before Mile 4.0
Closed hot tubs
Potholes sometimes called Car Wash or Devil's Hot Tub sit near the route, but Grand County says only marked Mickey's Hot Tub is open.
Before you continue
Do not enter any unmarked pothole. Continue to the signed Mickey's area or stay on the main route.
What catches people
Older videos and guide names can make a closed or private line look like a current legal obstacle.
Conditions change it
Access status—not water depth or vehicle build—is the deciding factor.
Fit
None. Closed terrain is not a vehicle-capability question.
Official mileage estimate
Area pin only. It marks the official warning, not an entrance to a drivable line.
38.593612, -109.540725At the obstacle
- Ignore tire tracks toward unmarked potholes.
- Check for the signed Mickey's Hot Tub marker.
- Report damaged closure signs to Sand Flats staff.