I've been using the route planner for about 10 years. It's the best one I've found.
I download routes to my Garmin Edge 830, or sometimes I use the RWGPS iPhone app's voice directions. I put the phone in my jersey pocket and turn up the volume. The directions are easy to follow. One tip if you're going to use the iPhone app: turn off Wi-fi and Bluetooth, it will save battery power.
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Ride, Rest, Repeat. ROUVY:
terrymorse