This weekend in Michigan is not just open to free fishing but also one of two in 2017 designated for free off-road vehicle use.

That means both residents and out-of-state visitors can ride about 3,660 miles of routes and trails designated by the state Department of Natural Resources for ORVs or ATVs without having a license or permit, saving operators up to $36.25, according to the DNR.

In addition to DNR-designated routes and trails, the weekend also includes the use of the state’s five scramble areas, including St. Helen’s Motorsport Area, Black Lake Scramble Area, Silver Lake, Bull Gap and The Mounds.

“It’s the perfect opportunity to explore the trails that help build Michigan’s reputation as the ‘Trails State,'” said Ron Olson, chief of the state DNR Parks and Recreation Division.

So far, the wet spring has been a great one for mudding in the region, getting dirty on an ORV.

The forecast for this weekend, in contrast, calls for weather that will be dry and perhaps the warmest so far of the year, which while less messy should otherwise be ideal for riding the trails.

As with any motorized piece of machinery, learning proper and safe operation is essential. Even more so with ORVs, which because of size and speed can prove more powerful than the driver might expect if not trained on their use, especially when a younger person is involved.

And even a free weekend has some rules to follow in Michigan.

Riders should remember that:

— Operators under age 16 must have a valid safety training certificate. Michigan will accept ORV/ATV education certifications issued by other states and provinces.

— Operators and passengers must wear a U.S. Dept. of Transportation-approved crash helmet and protective eyewear.

— Riders are encouraged to become familiar with the ORV Handbook of Michigan Off-Road Vehicle Laws, at DNR Customer Service Centers or anywhere hunting and fishing licenses are sold.

— It’s recommended not to consume alcohol before or while operating an ORV, for the safety of not just the driver but others on the trails.

Even if you can’t make it out this week, it’s worth investing in a Michigan ORV license or trail permit, as fees generated go back into the ORV system to help fund trail expansion, maintenance and infrastructure improvements, such as bridge and culvert construction and repair, as well as law enforcement and offsetting damage from illegal use.

So get out and have fun this weekend, in a safe and legal way.