Where you can legally ride an ORV on Sanilac County roads

Out in farm country, the ATV in the pole barn isn’t just a toy — it’s how a lot of people get to the back forty, run an errand into town, or ride to a buddy’s place. Sanilac County made that legal on its roads. A county ordinance adopted in 2010 opened the maintained portion of most county roads to off-road vehicles, which is a bigger deal than it sounds. Statewide, the default rule is that ORVs do not belong on public roads at all; it takes a county stepping in and passing its own ordinance to change that, and plenty of counties never have.

The freedom comes with hard rules, and the sheriff enforces them. You ride on the far right of the maintained roadway, single file, and no faster than 25 miles per hour. You still need a Michigan ORV license sticker. And the open roads are county roads — state highways like M-25, M-19, and M-46 are a different animal, governed by the state, not the county, so don’t assume the rule follows you onto a numbered highway.

The part that trips people up is that the county ordinance isn’t the last word inside town limits. Incorporated cities and villages — places like Sandusky, Croswell, Marlette, and Brown City — set their own rules within their boundaries, and they don’t all match the county or each other. A road that’s perfectly legal to ride a mile outside of town can turn into a ticket the moment you cross the village line. So the rhythm in Sanilac ends up being a country one: gravel and shoulder all the way out among the bean fields and wind turbines, then ease off and read the signs as the grain elevator and the village limit come into view.