Traversing 48 miles through Door and Kewaunee Counties, the Ahnapee State Trail is a delightful combination of old and new - a rejuvenated, newly-resurfaced railbed leading to adventure along Wisconsin's "thumb." The Northern 18 miles of the trail follows the meandering Ahnapee River from Algoma to Sturgeon Bay. This is the original part of the trail that now includes extensions into both cities. In 1997, a new rest stop/pavilion was built at the halfway point in Forestville. Another new wrinkle added in '97 was a 9-mile extension south and west from Algoma to Casco.The Ahnapee takes you from Lake Michigan's rocky shore to rolling farm fields and orchards. You can watch the Great Lakes freighters ply the Sturgeon Bay ship canal, see the fishing boats slip through the early morning mist of the Algoma breakwater, or just enjoy the woods and wildflowers on the inland roll to Casco Junction.