Tires, rock and the Idaho stud dates
Buy for sharp rock and long gravel. The Forest Service says the Lolo Motorway has no surface but what nature supplies, and recommends a tough vehicle with high clearance and good tires, and its packing list for the road puts a spare tire beside the map and the fuel.
Winter is written into the statute rather than into a traction code. Idaho Code prohibits studded tires on public highways between May 1 and September 30, and allows retractable studs to protrude only between October 1 and April 30. Its chain provisions are written for commercial vehicles at Lookout Pass, Fourth of July Pass and Lolo Pass, so a driver’s winter tire choice here is a practical decision rather than a legal one.