Gravel bike races DATELOCATIONTRAILEVENTDETAILSBOOK4/10Birmingha, ALOak MtnRoll the Washes/Go NutsXC,END/30,20Book2/21Detroit, MIBiker LanePeddle Fast/Have FunXC,END/30,20Book3/16Los Angeles, CAMtn HillCali Outdoors/SunshineXC,END/30,20Book 4/12Boulder, COGear UpMountains Here/Snow and ShineXC,END/30,20Book