On a recent bike ride on the 40 mile (64 km) Military Ridge Trail near Madison, bicycling traffic came to a complete halt due to some very agitated parents. There was a great hullabaloo while they called and strutted threateningly on and near the trail.
Nitty gritty: Wisconsin had the very first rail-to-trail in the US and has gone one to develop an extensive system with hundreds of miles of car-free trails on former railroad beds. Most of them are surfaced with crushed limestone and a bike with fairly skinny tires can handle them. Between the trails and an amazing network of paved secondary roads, Wisconsin is heaven for bicyclists. And don't forget the cheese!