Here are signs that mark the significant stopping points along the Lolo Motorway.
From the Clearwater National Forest brochure, Lewis & Clark On the Lolo Trail http://www.fs.fed.us/r1/clearwater/LewisClark/Assets/lolo_trail_corridor.pdf
Drive with Care!
The Lolo Motorway is narrow, a one-lane road with nothing more than what nature supplies as a surface. Some stretches hold big rocks that can scrape the underside of a low-clearance vehicle. It’s best to drive a tough vehicle with high clearance and good tires. Towing trailers or driving RVs or motor homes on many stretches of the Motorway is not advised. The high elevation route is open and free of snow generally from July through September, sometimes longer. Lightning storms are common in July and August, and snow can come early.