Apparently it was even used to smuggle grog in the days of Prohibition.
Its a freaky drive and you have to take it slow, don't know how many times I found myself trying to look around corners. In winter it is closed to traffic, unless you are a snowmobile.
little red car we were following
still following
you get mighty close to the rocks
people just pull off, sort of and wander off into the bush! Go figure.