County land, seasonal habitat, shared responsibility
The rules here are mostly short and mostly enforced. Two of them, the seasonal zones and the holiday camping line, catch people who have been coming for years.
All three, outright. This is a county recreation area with active law enforcement, not a remote patch of desert, and deputies do patrol the dunes. Whatever the rule was at the last place you rode, it is not the rule here.
Small campfires are permitted. Wood pallets are specifically not, and the reason is the nails, which end up in the sand and then in tires long after the fire is out. Bring real firewood and check current burn restrictions, because Washington fire rules tighten through the dry months.
That is nine months closed and three months open, which is the opposite of what most people assume when they see a seasonal zone. It protects habitat, and it is a hard boundary. Tracks running into it mean somebody else was wrong, not that the closure moved.
Roughly 3,000 additional acres of sand, mud, and trails open for three months in summer. Note the two calendars work against each other: the Mud Flats open the day after the Yellow Zone has been closed all spring, and shut on the same day the Yellow Zone closure begins again. Check which one you are planning around.
On Memorial Day, Fourth of July, and Labor Day weekends, camping is prohibited west of the third restroom building to the intersection of Sand Dunes Road and Powerline Road. That corridor is kept clear for emergency access. It is an unusually specific rule and it is the one visitors most often trip over, because the rest of the year camping is allowed almost anywhere.
105 decibels at 20 feet, a muffler with spark arrester, a helmet unless the machine has a cage and belts, a flag nine feet off the ground, and a current ORV tag. These are checked.
Pack out everything, keep machines off soft shoreline and wetland edges, and do not cut a new track because the ground looks empty. This is county land next to a working wildlife area, and continued access depends on the place staying worth managing.
Verify before travel. Conditions, zones, and regulations can change. Use the responsible agency's current information for final decisions.
Open Grant County's official source →