Not sure about a designated route. But I've got family up there and every time I go up to visit, I'm amazed at all the quiet roads once your a couple miles east of the lake. Sure is pretty up there, I'm sure no matter which way you go, it'll be a nice ride. Enjoy!!
__________________
and the road becomes my bride
I have stripped of all but pride
So in her I do confide
And she keeps me satisfied
Gives me all I need