The U.S. Bicycle Route System Corridor Map
The National Corridor Plan map identifies 50-mile wide corridors, both prioritized (numbered) and un-prioritized (faint brown corridors). As corridors become official routes, the wide swaths of color that show the corridors on the map will become solid lines to define actual routes (see USBR 76 and USBR 1 in Virginia as an example).
More on the USBRS →
Open the Map [PDF] →
One Response to “The U.S. Bicycle Route System Corridor Map”
The key does not explain what the green lines are.