Abbreviations are used in the ride descriptions to describe how flat or hilly a ride is. Note that these ratings are approximate, and are an average for a ride some rides have long flat segments along with some very hilly segments.
Code Description Feet of Climbing/MileF Flat route <10 F/R Flat to Rolling 11 – 22 gR Generally Rolling 21 – 30 RH Rolling to Hilly 31 – 45 sH Hilly 46 – 60 VH Very Hilly > 60