Every state Department of Transportation has a bicycle/pedestrian coordinator — even if they are not full time in this position, they will know the resources in their state better than anyone else. Nearly every state publishes a bicycle map of some sort they will send out for free. The coordinators or their state website often have more information available right there online or in print. And while the maps often aren't as detailed as ours, they generally offer suggested roads for cycling through their state. The Pedestrian and Bicycle Information Center maintains a webpage of contact information for each state.