BIA 1806, South Dakota
Route 1806 parallels the Missouri River, roughly following the path of explorers and cartographers Lewis and Clark. And, says Bicycle Adventures guide Matt Paul, it feels like you’re right there with Lewis and Clark. He claims you can see forever. And although you might glimpse cattle, elk, and pronghorn, you won’t see houses or many cars, you can ride for 50 miles and not encounter a car, Paul says. The terrain is rolling (Paul compares it to a roller coaster), with perfect blacktop and wide-open vistas that let you see the river and the grassy prairie. It’s a road you hesitate to tell people about, but it’s almost too good to share.