There's a site called EatSleepRide.com that has a routes section. Being it's trying to be a social media platform for motorcyclists but still being obscure, the routes can be hit or miss on coverage. The app and the Crashlight service they offer is nice though. If it detects your phone takes a tumble while activated, it gives you 3 minutes to deactivate it before it calls/texts/emails up to 3 contacts of your choice where you're located and that you've crashed.

Routes can be found here: https://eatsleepride.com/route