Trek Biker from St. Joseph, MO on 3/14/2008 8:52:35 AM:
Hermann to Portland (west) is a pretty ride along the bluffs in several places.
With Hermanoff and Stone Hill in town, I'd opt out hitting the highways to visit others. Although Adam Puchta has some very good wine...IMO it is not worth the effort to visit, even by car. If you know the grape that you like, look for Puchta wine(or others) at Loutre Market just south of McKittrick...the cost is much less than at the winery.