Disclaimer: Follow these routes AT YOUR OWN RISK! Many of these will be difficult, mountain routes that are far from civilization. Do your own research, make sure you have places to stop and refuel. Be careful when descending mountains. You are responsible for yourself!
These are all RideWithGPS links that have been crowd-sourced. These can be imported into many GPS devices, including Garmins.
Route locations are based on starting location. Many travel to different cities and states.
South Carolina Routes
SteepClimbs.com 
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