The 62-mile bike trail follows the former Chicago, Aurora and
Elgin commuter train line. Abandoned in 1961, it was converted to
the Prairie Path in 1963. The trail starts in Forest Park, but it's
easier to pick it up in Elmhurst off Spring Road. Then ride it west
to Wheaton. There are also branches to Elgin and Aurora. The most
starting points are in Elmhurst, Wheaton (the trailhead), and
Warrenville (by the library). Maps are available online.