THIRD OF THREE PARTS
After five years of meticulous mapping, Minnesota is on the verge of ensuring that thousands of miles of backwoods trails and roads are open to all-terrain vehicles.
It will be the state's biggest step yet to gain control over ATV riding in its public forests, and it's stoking a contentious debate over what place motors have in the woods.
The immense trail project will have lasting consequences for outdoor recreation in Minnesota. It also is bitterly dividing the state Department of Natural Resources, which manages 4.2 million acres of state forests.
Some DNR experts are worried that the changes will leave forests and other wild lands vulnerable to damage from ATVs.
Others call the newly sanctioned trails, which could exceed 7,700 miles, the best way to control what had been a motorized free-for-all on public land.
In shaping the plan, top DNR officials repeatedly overruled field staff by approving motorized access near riverbanks, bogs and old-growth forest, and in areas that harbor red-shouldered hawks and rare plants, interviews with DNR staff and a review of agency records show.
The agency says riders tend to stay on marked trails. It contends there is no need to route trails away from wetlands and other critical areas that can be ravaged by the wheels of wayward ATVs.