I visited Illinois Peak September 13, 2013 and the first mile of the trail is no longer derivable to highway vehicles. There is a kelly hump and boulders preventing travel to all but dirt bikes at the Freezout Pass Trailhead. Exceptional hike though- includes a stroll through one of Montana's only mountain hemlock forests!
"After the first glass, you see things as you wish they were. After the second, you see things as they are not. Finally, you see things as they really are, which is the most horrible thing in the world."
--Oscar Wilde on Absinthe